This book is a long-term history of optics, from early Greek theories of vision to the nineteenth-century victory of the wave theory of light. It is a clear and richly illustrated synthesis of a large amount of literature, and a reliable and efficient guide for anyone who wishes to enter this domain.

This paper defends hedonic intentionalism, the view that all pleasures, including bodily pleasures, are directed towards objects distinct from themselves. Brentano is the leading proponent of this view. My goal here is to disentangle his significant proposals from the more disputable ones so as to arrive at a hopefully promising version of hedonic intentionalism. I mainly focus on bodily pleasures, which constitute the main troublemakers for hedonic intentionalism. Section 1 introduces the problem raised by bodily pleasures for hedonic intentionalism and (...) some of the main reactions to it. Sections 2 and 3 rebut two main approaches equating bodily pleasures with non- intentional episodes. More precisely, section 2 argues that bodily pleasures cannot be purely non-intentional self-conscious feelings, by relying on Brentano’s objection to Hamilton’s theory of pleasure. Section 3 argues that bodily pleasures cannot be non-intentional sensory qualities by relying on Brentano’s objections to Stumpf’s theory of pleasure. Section 4 develops a brentanian view of the intentionality of bodily pleasures by claiming bodily pleasures are directed at a sui generis class of sensory qualities. Section 5 presents an objection to Brentano’s later theory of pleasure according to which all sensory pleasures are directed at sensing acts. (shrink)

The architects of the modern synthesis banned essentialism from evolutionary theory. This rejection of essentialism was motivated by Darwin’s theory of natural selection, and the continuity of evolutionary transformation. Contemporary evolutionary biology witnesses a renaissance of essentialism in three contexts: “origin essentialism” with respect to species and supraspecific taxa, the bar coding of species on the basis of discontinuities of DNA variation between populations, and the search for laws of evolutionary developmental biology. Such “new essentialism” in contemporary biology must be (...) of a new kind that accommodates relational (extrinsic) properties as historical essences and cluster concepts of natural kinds. (shrink)

The paper aims at clarifying the distinctions and relations between pain and suffering. Three negative theses are defended: 1. Pain and suffering are not identical. 2. Pain is not a species of suffering, nor is suffering a species of pain, nor are pain and suffering of a common (proximate) genus. 3. Suffering cannot be defined as the perception of a pain’s badness, nor can pain be defined as a suffered bodily sensation. Three positive theses are endorsed: 4. Pain and suffering (...) are categorically distinct: pain is a localised bodily episode, suffering is a non-localised affective attitude. 5. Suffering can be expressed, pains cannot. As a consequence, we can have compassion for the suffering of others, not for their pains. 6. The relation between pain and suffering is akin to the relation between danger and fear, injustice and indignation, wrongdoing and guilt: suffering is the correct reaction to pain. One upshot is that both the influential view that the experience of pain is incorrigible and the influential view that the ordinary conception of pain is paradoxical are false. (shrink)

The relativistic revolution led to varieties of neo-Kantianism in which constitutive principles define the object of scientific knowledge in a domain-dependent and historically mutable manner. These principles are a priori insofar as they are necessary premises for the formulation of empirical laws in a given domain, but they lack the self-evidence of Kant’s a priori and they cannot be identified without prior knowledge of the theory they purport to frame. In contrast, the rationalist endeavors of a few masters of theoretical (...) physics have led to comprehensibility conditions that are easily admitted in a given domain and yet suffice to generate the theory of this domain. The purpose of this essay is to compare these two kinds of relativized a priori, to discuss the nature of the comprehensibility conditions, and to demonstrate their effectiveness in a modular conception of physical theories. (shrink)

What are economic exchanges? The received view has it that exchanges are mutual transfers of goods motivated by inverse valuations thereof. As a corollary, the standard approach treats exchanges of services as a subspecies of exchanges of goods. We raise two objections against this standard approach. First, it is incomplete, as it fails to take into account, among other things, the offers and acceptances that lie at the core of even the simplest cases of exchanges. Second, it ultimately fails to (...) generalize to exchanges of services, in which neither inverse preferences nor mutual transfers hold true. We propose an alternative definition of exchanges, which treats exchanges of goods as a special case of exchanges of services and which builds in offers and acceptances. According to this theory: (i) The valuations motivating exchanges are propositional and convergent rather than objectual and inverse; (ii) All exchanges of goods involve exchanges of services/actions, but not the reverse; (iii) Offers and acceptances, together with the contractual obligations and claims they bring about, lie at the heart of all cases of exchange. (shrink)

I defend the view that the experience of resistance gives us a direct phenomenal access to the mind-independence of perceptual objects. In the first part, I address a humean objection against the very possibility of experiencing existential mind-independence. The possibility of an experience of mind-independence being secured, I argue in the second part that the experience of resistance is the only kind of experience by which we directly access existential mind-independence.

This paper explores the use of Popper's philosophy of science by cladists in their battle against evolutionary and numerical taxonomy. Three schools of biological systematics fiercely debated each other from the late 1960s: evolutionary taxonomy, phenetics or numerical taxonomy, and phylogenetic systematics or cladistics. The outcome of that debate was the victory of phylogenetic systematics/cladistics over the competing schools of thought. To bring about this "cladistic turn" in systematics, the cladists drew heavily on the philosopher K.R. Popper in order to (...) dress up phylogenetic systematics as a hypothetico-deductivist, indeed falsificationist, research program that would put an end to authoritarianism. As the case of the "cladistic revolution" demonstrates, scientists who turn to philosophy in defense of a research program read philosophers with an agenda in mind. That agenda is likely to distort the philosophical picture, as happened to Popper's philosophy of science at the hands of cladists. (shrink)

This paper argues (i) that the possibility of experiencing at once pleasures and unpleasures does not threaten the contrariety of pleasure and unpleasure. (ii) That the hedonic balance calculated by adding all pleasures and displeasures of a subject at a time yields an abstract result that does not correspond to any new psychological reality. There are no resultant feelings. (iii) That there are nevertheless, in some cases, sentimental fusions: when the co-occurent pleasures and unpleasures do not have any bodily location, (...) and that their intentional object vanishes, they truly fuse with each other, giving rise to sentimental mixtures in which the initial pleasures and unpleasures are no longer discernible. (shrink)

Formalisms based on one or other flavor of Description Logic (DL) are sometimes put forward as helping to ensure that terminologies and controlled vocabularies comply with sound ontological principles. The objective of this paper is to study the degree to which one DL-based biomedical terminology (SNOMED CT) does indeed comply with such principles. We defined seven ontological principles (for example: each class must have at least one parent, each class must differ from its parent) and examined the properties of SNOMED (...) CT classes with respect to these principles. Our major results are: 31% of these classes have a single child; 27% have multiple parents; 51% do not exhibit any differentiae between the description of the parent and that of the child. The applications of this study to quality assurance for ontologies are discussed and suggestions are made for dealing with the phenomenon of multiple inheritance. The advantages and limitations of our approach are also discussed. (shrink)

This paper defends the action-theory of the Will, according to which willing G is doing F (F≠G) in order to make G happen. In a nutshell, willing something is doing something else in order to bring about what we want. -/- I argue that only the action-theory can reconcile two essential features of the Will. (i) its EFFECTIVITY: willing is closer to acting than desiring. (ii) its FALLIBILITY: one might want something in vain. The action-theory of the will explains EFFECTIVITY (...) by claiming that each time one wants G, one accomplishes the action of doing F ( it is argued following Von Wright that every action has a result as a proper part, here F). And the action-theory explains FALLIBILITY by claiming that although willing G entails making some F happen –the result of the action of willing–, it does not entail that G –the intended consequence of our willing– will happen. -/- By contrast, behaviorist accounts of the will (which merely equate willing with an action) captures its EFFECTIVITY but loose its FALLIBILITY. And volitionist accounts (which introduce naked volitions lacking any essential results) capture the FALLIBILITY of the will, but loose its EFFECTIVITY. -/- I consider disjunctivist accounts of trying (such as O'Shaughnessy and Hornsby's ones) as an alternative way to reconcile EFFECTIVITY and FALLIBILITY. I argue that though the view manages to reconcile these two constraints, it does so only at the price of gerrymandering the concept of willing (or trying): failed tryings end up having nothing in common with successful ones. -/- I then address three objections to the action-theory of the will, to the effect (i) that not all actions have a result (ii) that total failures are possible (iii) that willing is more fundamental than acting. I argue in answer (i) that all actions have results (results which can be irrelevant to the production of the goal, or which can be merely mental images), (ii) that total failures do not correspond to acts of will, but to mere desires or wishes, and (iii) that given the possibility of basic actions, acting has to be more fundamental than willing (and trying). (shrink)

Analogies between hearing and seeing already existed in ancient Greek theories of perception. The present paper follows the evolution of such analogies until the rise of 17th century optics, with due regard to the diversity of their origins and nature but with particular emphasis on their bearing on the physical concepts of light and sound. Whereas the old Greek analogies were only side effects of the unifying concepts of perception, the analogies of the 17th century played an important role in (...) constructing optical theories by imitation of acoustic theories, or vice versa. This transition depended on several factors including the changing relations between optics, music, mathematics, and physics, the diversity of early modern concepts of sound, and the rise of a new physics based on experimentation and mechanical explanation. (shrink)

This paper describes and defends the “virtues of ingenuity”: detachment, lucidity, thoroughness. Philosophers traditionally praise these virtues for their role in the practice of using reasoning to solve problems and gather information. Yet, reasoning has other, no less important uses. Conviction is one of them. A recent revival of rhetoric and argumentative approaches to reasoning (in psychology, philosophy and science studies) has highlighted the virtues of persuasiveness and cast a new light on some of its apparent vices—bad faith, deluded confidence, (...) confirmation and myside biases. Those traits, it is often argued, will no longer look so detrimental once we grasp their proper function: arguing in order to persuade, rather than thinking in order to solve problems. Some of these biases may even have a positive impact on intellectual life. Seen in this light, the virtues of ingenuity may well seem redundant. Defending them, I argue that the vices of conviction are not innocuous. If generalized, they would destabilize argumentative practices. Argumentation is a common good that is threatened when every arguer pursues conviction at the expense of ingenuity. Bad faith, myside biases and delusions of all sorts are neither called for nor explained by argumentative practices. To avoid a collapse of argumentation, mere civil virtues (respect, humility or honesty) do not suffice: we need virtues that specifically attach to the practice of making conscious inferences. (shrink)

Nous exposons dans cet article les différentes interrogations posées par les réseaux socionumériques au sein de dispositifs de formation. Nous tentons de montrer qu’il est envisageable de repenser leur intégration au sein des systèmes éducatifs notamment pour montrer autant leur potentiels que leurs dangers. Nous montrons également les intérêts d’autres types de réseaux comme les plateformes de signets sociaux et les réseaux numériques thématiques comme ceux des loisirs créatifs pour envisager de nouvelles méthodes de formation.This article discusses the different issues (...) raised by social networking sites in the field of education. We try to show how their use in educational systems could be reconsidered, in particular to highlight both their potential and their dangers. We also show the potential contributions of other types of networks, such as social bookmarking sites and online thematic networks, on creative leisure activities for example, to ideas for new educational methods. (shrink)

In this paper we study substantive assumptions in social interaction. By substantive assumptions we mean contingent assumptions about what the players know and believe about each other’s choices and information. We first explain why substantive assumptions are fundamental for the analysis of games and, more generally, social interaction. Then we show that they can be compared formally, and that there exist contexts where no substantive assumptions are being made. Finally we show that the questions raised in this paper are related (...) to a number of issues concerning “large” structures in epistemic game theory. (shrink)

On a pris l'habitude de voir en l'analyse un instrument logique de décomposition et de clarification des concepts, confirmant du même coup l'évaluation critique qu'en a donnée Kant : l'analyse est un procédé stérile qui ne contribue en rien à l'expansion et au renouvellement des connaissances. Soulignant la cohérence de ses emplois historiques, le présent ouvrage cherche au contraire à rétablir l'analyse en sa fonction inventive : de l'Antiquité au XVII siècle, la méthode analytique constitue, en effet, une solution aux (...) insuffisances de la déduction logique ; s'appuyant sur la construction et le déchiffrement des figures, elle offre une voie à la fois détournée et probante pour la résolution des problèmes. Descartes est l'héritier de cette tradition, mais il est aussi, à maints égards, l'artisan de la conception moderne de l'analyse dont il a fait la voie privilégiée de la connaissance de soi dans les Méditations métaphysiques. Accomplissement heuristique de "l'ordre des raisons" mais aussi aventure temporelle inscrite dans la durée féconde de la méditation, l'analyse se révèle alors l'instrument d'une raison radicalement inventive. (shrink)

Cet ouvrage, qui contient les actes d’une conférence internationale tenue en mars 2008 à l’Université Catholique du Sacré Cœur de Milan, permet de mesurer les progrès réalisés dans la connaissance de Stobée depuis les Doxographi Graeci de Diels, sur les plans tant philologique que doxographique et thématique. L’épaisseur du volume, muni d’un index locorum et d’une bibliographie étoffée, interdit de faire autre chose, dans le cadre d’un compte-rendu, qu’indiquer brièvement les points saillants...

Our thesis is that proprioception is not a sixth sense distinct from the sense of touch, but a part of that tactile (or haptic) sense. The tactile sense is defined as the sense whose direct intentional objects are macroscopic mechanical properties. We first argue (against D. Armstrong, 1962; B. O'Shaughnessy 1989, 1995, 1998 and M. Martin, 1992, 1993,1995) that the two following claims are incompatible : (i) proprioception is a sense distinct from touch; (ii) touch is a bipolar modality, that (...) intrinsically has both a subjective-bodily pole and objective pole. We then argue that the bipolarity of touch should be preferred over the introduction of a sui generis sense of the body. We try to revive Aristotle suggestion according to which the body is the tactile medium (like the air for sight). Since this medium is constantly changing its shape, we need some specific channel of information about its state : proprioception, functionally defined, is that part of touch which informs us about the state of this changing tactile medium. Though muscular and articular receptors are usually dedicated to inform us about the mechanical properties of the tactile media, and the skin receptors about the mechanical properties of the tactile objects, this is not essentially so. In weighting or wielding experiments we access the weight of external objects even when skin sensitivity is absent; in prosthetic touch, the skin receptors play the role usually assigned to muscle and articular receptors, namely to inform us about the mechanical state of the tactile medium. So proprioception, anatomically defined, can play both the role of informing us about the tactile medium, or about the tactile objects. That other sensory modalities also rely on proprioceptive information should be understood in terms of cross-modal dependencies: of sight, hearing, smell, taste...on touch. (shrink)

The thesis defended is that ordinary perception does not present us with the existential independence of its objects from itself. The phenomenology of ordinary perception is mute with respect to the subject-object distinction. I call this view "phenomenal neutral monism" : though neutral monists are wrong about the metaphysics of perception (in every perceptual episode, there is a distinction between the perceptual act and its perceptual objet), they are right about its phenomenology. I first argue that this view is not (...) as counter-intuitive as it might initially seem, by stressing (i) that the lack of presentation of the mind-independence of perceptual objects does not entail their being presented as mind-dependent. (ii) That phenomenal neutral monism is true of ordinary perception in the thin sense, but not in the thick sense (that includes expectations, guesses, feelings etc. grounded on thin perception). (iii) That the concept of a perceptual perspective or point of view should not be confused with the concept of the subject or intentional act of perception. Second, I propose three positive arguments in favor of phenomenal neutral monism. (i) It does justice to the recurring idea that only resistance to our will presents us with the world qua independent from us. (ii) It does justice to the recurring idea that the most natural attitude towards the perceptual world is that of being absorbed in it. (iii) It is entailed by the view that intentional acts are phenomenally transparent (a view held by Russell and Moore, and most contemporary representationalists) together with the view that in order to be presented with a relation (here the act-object distinction) one has to be presented with its relata. (shrink)

Esquisses, plans, documents et photographies présentent l'exposition en cours de construction. Un texte explicatif donne les principales clés de lecture du poème de Rimbaud "Après le déluge", extrait des "Illuminations", et de la scénographie adoptée pour le mettre en scène.

This chapter has three sections. The first introduces Brentano’s view of sensations by presenting the intentional features of sensations irreducible to features of the sensory objects. The second presents Brentano’s view of sensory objects —which include sensory qualities— and the features of sensations that such objects allow to explain, such as their intensity. The third section presents Brentano’s approach to sensory pleasures and pains, which combines both appeal to specific modes of reference and to specific sensory qualities.

On a souvent souligné que l’usage du concept de substance était problématique dans les Méditations, préférant l’exposé plus rigoureux des Principia. À l’encontre de cette interprétation, cet article affirme que le traitement analytique de la substance est non seulement conforme à l’ordre des raisons, mais que s’y développe une aventure révélatrice : si la réflexion sur l’ ego et la cogitatio tend à faire de celui-ci une quasi substance, la formule « ego autem substantia » accomplit dans la Troisième Méditation (...) une substantialisation qui n’est que transitoire. Car cette substantialisation, fondée sur la présomption de l’ ego se concevant comme author, est aussitôt contestée à la lumière de la relation que l’ ego entretient au Dieu infini. (shrink)

Urban agriculture is an important source of food and income throughout Africa. The majority of cultivators on the continent are women who use urban agriculture to provide for their family. Much research on urban agriculture in Africa focuses on the material benefits of urban agriculture for women, but a smaller body of literature considers its social and psychological empowering effects. The present study seeks to contribute to this debate by looking at the ways in which urban agriculture empowers women on (...) the Cape Flats, a region of Cape Town where urban agriculture is supported by nongovernmental organisations. Based on interviews with cultivators, the findings show that NGO-run urban agriculture projects not only aid food security, but also help women to develop supportive networks that unlock benefits across the personal, social and economic spectrum. (shrink)

A la différence de plusieurs interprétations de la mécanique quantique basées sur la phénoménologie de l'expérimentation macroscopique, celle-ci repose exclusivement sur le formalisme de la mécanique quantique relativiste lui-même. On y assimile le concept de causalité à celui d'une probabilité conditionnelle ayant deux traits spécifiques : « non-séparabilité » des occurrences au sens du calcul quantique des probabilités (Jordan, 1926) ; invariance sous les rotations (Lorentz et Poincaré, 1905) et les retournements d'axes (Lüders, 1952) du référentiel spatio-temporel cartésien, impliquant une (...) réversibilité cause-effet. Unlike various interpretations of quantum mechanics based upon the phenomenology of macroscopic experimentation, this one rests entirely upon the formalism of relativistic quantum mechanics per se. The concept of causality is likened to that of a conditional probability endowed with two specific features : « non-separability » of occurrences in the sense of the quantal calculus of probabilities (Jordan, 1926); invariance under rotations (Lorentz and Poincaré, 1905) and reversals of axes (Lüders, 1952) of the spatiotemporal Cartesian reference frame, entailing cause-effect reversibility. (shrink)

Cet article cherche à rendre compte de la signification du concept d'habitus que nous retrouvons chez Michel Henry en tentant de le situer par rapport aux principaux concepts qui sont au fondement de la phénoménologie matérielle.

We consider ω n -automatic structures which are relational structures whose domain and relations are accepted by automata reading ordinal words of length ω n for some integer n ≥ 1. We show that all these structures are ω-tree-automatic structures presentable by Muller or Rabin tree automata. We prove that the isomorphism relation for ω 2 -automatic (resp. ω n -automatic for n > 2) boolean algebras (respectively, partial orders, rings, commutative rings, non commutative rings, non commutative groups) is not (...) determined by the axiomatic system ZFC. We infer from the proof of the above result that the isomorphism problem for ω n -automatic boolean algebras, n ≥ 2, (respectively, rings, commutative rings, non commutative rings, non commutative groups) is neither a ${\mathrm{\Sigma }}_{2}^{1}-\mathrm{s}\mathrm{e}\mathrm{t}$ nor a ${\mathrm{\Pi }}_{2}^{1}-\mathrm{s}\mathrm{e}\mathrm{t}$ . We obtain that there exist infinitely many ω n -automatic, hence also ω-tree-automatic, atomless boolean algebras $\mathcal{B}_{n}$ , n ≥ 1, which are pairwise isomorphic under the continuum hypothesis CH and pairwise non isomorphic under an alternate axiom AT, strengthening a result of [14]. (shrink)

L’auteur commente deux termes apparaissant dans le Discours de rectorat et dans certains textes de 1933-1934, les mots « Gefolgschaft » et « Studentenrecht » qui se renvoient l’un à l’autre par leurs contenus puisque le Führerprinzip, dont la Gefolgschaft est le corrélat indissociable, s’infiltre partout comme le principe général d’organisation sociale et qu’il est donc au cœur du « nouveau droit des étudiants ». La présence de ces deux éléments lourds et centraux du lexique lti, si elle ne suffit (...) pas à réduire la parole du recteur à celle, contemporaine, des idéologues nationaux-socialistes, soulève la question complexe de leur portée philosophique pour Heidegger dans le Discours et au-delà.By focusing on two terms that appear in the Rectorial Address and texts of 1933-1934: « Gefolgschaft » and « Studentenrecht », the author turns our attention to their relation since the « Führerprinzip », inseparable from its « Gefolgschaft », shows itself as the general principle of social organization and lies therefore at the heart of the « new rights of students ». The presence of these heavy and central elements of the lti, if it does not reduce the discourse of the Rector to contemporary ideologues of National Socialism, raises the complex question of their philosophical significance for Heidegger in the Address and beyond. (shrink)

" Que reste-t-il de l'Etat? ". " Pas grand-chose " serait-on tenté de dire, tant on ne cesse de répéter que l'Etat est " en crise " et qu'il est entré dans un " processus de désintégration ". Certes, il existe d'évidents mouvements d'émiettement des compétences autrefois concentrées au niveau de l'Etat central. Elles sont redistribuées au profit, d'un côté, d'organisations mondiales ou européennes, supra- et inter-étatiques, de l'autre, d'entités publiques subétatiques comme, en Belgique, les Communautés et Les Régions. Certes, (...) on assiste aussi à des mouvements tangibles de retrait de l'Etat dans la gestion collective de pans importants d'activités sociales, que ce soit au profit du " marché ", de la " science " ou de la " société civile ". Mais mesure-t-on bien l'ampleur et la nature de ces processus et est-on sûr qu'ils ne sont pas compensés par d'autres qui iraient dans le sens d'un redéploiement de l'Etat? C'est à l'analyse de ces différents mouvements de repli, de redéploiement et de continuation de l'action de l'Etat dans la société actuelle qu'est consacré le présent ouvrage. Au départ de la question : " Où en est l'Etat aujourd'hui? ", cet ouvrage collectif, issu d'un congrès de politologues qui s'est tenu à l'Université Libre de Bruxelles en 2002, traite de l'avenir du mode institutionnel par lequel les êtres humains ont entendu assurer, pendant des siècles en Occident, la production de cadres communs à leur existence individuelle et collective. (shrink)

La théorie nietzschéenne du génie, dans la mesure où elle réhabilite positivement la contrainte et la convention dans la création artistique, permet de dépasser la mystérieuse théorie romantique d'inspiration naturaliste. Sur quoi repose cette théorie esthétique nietzschéenne ? Sur l'assimilation de la langue de l'artiste à une convention efficiente, c'est-à-dire lui permettant de communiquer activement avec un public, et donc d'être compris. La véritable convention est celle qui naît du besoin, et qui, – intégrée dans un travail de soi sur (...) soi commandé par la contrainte, le sérieux et la discipline, – se transforme en une nouvelle habitude, et devient une seconde nature, sous l'effet de la répétition acharnée. Elle s'oppose au laisser-aller, et rend possible la constitution d'une véritable culture dépassant l'opposition de la convention et de la nature. Elle définit selon l'auteur le style de l'esprit libre, soit l'artiste capable « de danser dans les chaînes », c'est-à-dire de jouer avec la convention. La véritable liberté artistique ne consiste donc pas à s'affranchir de la tradition, mais à la maîtriser et à jouer avec elle. La théorie de la création artistique élaborée par Nietzsche fournit ainsi le paradigme d'une libération de l'esprit. (shrink)

Dix ans apres la mort de Hans Jonas, qu'en est-il de la reception de sa philosophie? L'incroyable succes qu'elle connut s'explique par l'actualite d'un de ses themes principaux: la necessite d'une responsabilite nouvelle a l'egard des generations futures. Mais la reception largement negative que provoqua sa vulgarisation dans les domaines de l'ethique envireonnementale ou de la bioethique ne laisse pas de masquer le fondement de cette philosophie et les conditions memes de la mise en place des thematiques nouvelles qui retinrent (...) d'abord l'attention. S'alimentant a des sources tantot cachees, tantot eclectiques, elle s'est developpee au cours de plusieurs periodes dont le philosophe lui-meme disait ne pas voir ce qu'elles avaient en commun... Susceptible d'etre abordee par des voies multiples, cette oeuvre reste encore un defi pour le penseur et l'historien de la philosophie qui veulent la prendre au serieux et qui sont soucieux de la reconstruire et d'en lever tous les mysteres. (shrink)