A deterministic equation of the Hamilton-Jacobi type is proposed for a single particle:S t+(1/2m)(∇S)2+U{S}=0, whereU{S} is a certain operator onS, which has the sense of the potential of the self-generated field of a free particle. Examples are given of potentials that imply instability of uniform rectilinear motion of a free particle and yieldrandom fluctuations of its trajectory. Galilei-invariant turbulence-producing potentials can be constructed using a single universal parameter—Planck's constant. Despite the fact that the classical trajectory concept is retained, the mechanics (...) of the particle then admits quantum-type effects: an uncertainty relation, de Broglie-type waves and their interference, discrete energy levels, and zero-point fluctuations. (shrink)

The Irish poet W. B. Yeats once wrote, with great sapience and perception: Nor dread, nor hope attend A dying animal; A man awaits his end Dreading and hoping all. That death has ever been a problem to man is attested as far back as we can trace our species in the archaeological record—indeed, it seems to have been a problem even for that immediate precursor of homo sapiens, the so-called Neanderthal Man; for he buried his dead.

The aim of this article is to offer what I consider to be necessary substantiati for the view that the description of the walk which acts as a frame for the singing contest in Id. 7 is based on a precise knowledge of the geography of t island of Cos and that the poem thus displays a topographical realism unique Greek pastoral.

G Reddiford; Sociology, Psychology and the Study of Education, Journal of Philosophy of Education, Volume 3, Issue 1, 30 May 2006, Pages 81–103, https://doi.org.

What Is a Person: Untapped Insights from Africa, a new book by Nancy Jecker and Caesar Atuire, offers an appealing and fresh perspective into ongoing debates surrounding personhood.1 The bioethics literature has, largely, drawn from Western/global North thought or (as arguably with the case of principlism) amalgamations of those traditions.2 3 This leaves substantial room for enriching current debates through insights from and engagement with understudied traditions. Just such an approach is taken by Jecker and Atuire, who in particular bring (...) African philosophical theories of personhood into dialogue with Western ones. Their critical appraisal ably identifies flaws with a range of theories across different traditions, and their book attempts to put forward a new theory of personhood that aims to draw from the best and discard the worst of those theories: Emergent Personhood. The book’s early sections indeed are very useful in terms of critical comparative analysis, resulting in insights such as the finding that both traditional African and traditional Western (or more specifically, Greco-Roman) thought actually overlap in terms of how personhood is conceptualised: extrinsic, earned, scalar and changing. Modern Western thought, though, eschewed those concepts first through the introduction of Christian moral equality, then Enlightenment systematic secular theories like deontology and utilitarianism that claim non-theological basis for such moral personhood. By contrast, the contemporary African theories Jecker and Atuire cite largely align with the traditional, relational accounts. So does their theory of Emergent Personhood succeed where African and Western thought have fallen short? While the theory’s contours are promising, several aspects are in need of further development. In this brief commentary, I will highlight three somewhat inter-related issues: (1) The criteria by which theories of personhood are evaluated are never given firm normative justification; (2) The normative force of Emergent Personhood’s relational foundations are not explicated; …. (shrink)