A part of relativistic dynamics is axiomatized by simple and purely geometrical axioms formulated within first-order logic. A geometrical proof of the formula connecting relativistic and rest masses of bodies is presented, leading up to a geometric explanation of Einstein's famous E = mc² . The connection of our geometrical axioms and the usual axioms on the conservation of mass, momentum and four-momentum is also investigated.

H. Tristram Engelhardt, Jr.; The DeChristianization of Christian Health Care Institutions, or, How the Pursuit of Social Justice and Excellence can Obscure the.

Is Utilitarianism Bad for Women? Philosophers and policy-makers concerned with the ethics, economics, and politics of development argue that the phenomenon of ‘adaptive preference’ makes preference-utilitarian measures of well-being untenable. Poor women in the Global South, they suggest, adapt to deprivation and oppression and may come to prefer states of affairs that are not conducive to flourishing. This critique, however, assumes a questionable understanding of preference utilitarianism and, more fundamentally, of the concept of preference that figures in such accounts. If (...) well-being is understood as preference-satisfaction it is easy to see why poor women in the Global South are badly off: even if they do not desire more favorable conditions they nevertheless prefer them, and that preference is not satisfied. Preferentism provides a rationale for improving economic conditions and dismantling the unjust institutions that prevent them from climbing higher on their preference-rankings. Utilitarianism, therefore, insofar as utility is understood as preference satisfaction, is good for women. (shrink)

This book demonstrates the rich diversity and depth of political philosophy in the twentieth century. Catherine H. Zuckert has compiled a collection of essays recounting the lives of political theorists, connecting each biography with the theorist's life work and explaining the significance of the contribution to modern political thought. The essays are organized to highlight the major political alternatives and approaches. Beginning with essays on John Dewey, Carl Schmitt and Antonio Gramsci, representing the three main political alternatives - liberal, fascist (...) and communist - at mid-century, the book proceeds to consider the lives and works of émigrés such as Hannah Arendt, Eric Voegelin, and Leo Strauss, who brought a continental perspective to the United States after World War II. The second half of the collection contains essays on recent defenders of liberalism, such as Friedrich Hayek, Isaiah Berlin and John Rawls and liberalism's many critics, including Michel Foucault, Jürgen Habermas and Alasdair MacIntyre. (shrink)

daftar-i avval. Mabāḥis̲-i maʻrifatʹshinākhtī va ravishʹshinākhtī --.

English title: "The early literary education of the young José Gaos in Valencia (1915-1919)"Resumen: Nuestra intención en este texto es investigar acerca de los primeros años de formación del pensamiento de José Gaos (1900-1969); así pues, no parece ser demasiado erróneo pensar que aquél, hacia 1915 no era, aún, puramente “filosófico”: la Filosofía representaba parte de su formación, cumpliendo el mismo papel —eso sí: básico y fundamental— que desempeñó la Literatura. El primer auténtico encuentro con la Filosofía se daría antes (...) de su llegada a Valencia, en ese mismo año de 1915; pero ese también es el año en que Gaos recibirá una sólida formación estético-literaria a través de prensa y revistas filosóficas, especialmente en el grupo que conformó junto con Max Aub, José Medina Echeverría y su hermano Carlos Gaos. Abstract: This paper investigates in detail about the early years of José Gaos (1900-1969) and his education in philosophy and literature. Therefore, we know that their studies (academic or not) were not purely “philosophical” in 1915. Literature and philosophy played in Gaos an equally important role. The first real encounter with philosophy happens before he comes to Valencia in 1915; but in this year Gaos also receives a strong education, in aesthetic and literary, through press and philosophical journals, and especially within the group formed with Max Aub, José Medina Echeverría and his brother Carlos Gaos. Palabras clave: José Gaos, literatura, juventud, formación, Valencia. Keywords: José Gaos, literature, youth, education, Valencia. (shrink)

Aristotle was the first philosopher in the Western tradition to address politics systematically and empirically, and he remains a central figure in political theory. This essential volume presents Aristotle's complete political writings—including his Politics, Economics, and Constitution of Athens—in their most authoritative translations, taken from the complete works that is universally recognized as the standard English edition. Edited by Jonathan Barnes, one of the world’s leading scholars of ancient philosophy, and with an illuminating introduction by Melissa Lane, an authority on (...) ancient political philosophy, this compact but comprehensive volume will be invaluable for all students of politics, philosophy, classics, or Western thought. (shrink)

Machiavelli is popularly known as a teacher of tyrants, a key proponent of the unscrupulous “Machiavellian” politics laid down in his landmark political treatise The Prince. Others cite the Discourses on Livy to argue that Machiavelli is actually a passionate advocate of republican politics who saw the need for occasional harsh measures to maintain political order. Which best characterizes the teachings of the prolific Italian philosopher? With Machiavelli’s Politics, Catherine H. Zuckert turns this question on its head with a major (...) reinterpretation of Machiavelli’s prose works that reveals a surprisingly cohesive view of politics. Starting with Machiavelli’s two major political works, Zuckert persuasively shows that the moral revolution Machiavelli sets out in The Prince lays the foundation for the new form of democratic republic he proposes in the Discourses. Distrusting ambitious politicians to serve the public interest of their own accord, Machiavelli sought to persuade them in The Prince that the best way to achieve their own ambitions was to secure the desires and ambitions of their subjects and fellow citizens. In the Discourses, he then describes the types of laws and institutions that would balance the conflict between the two in a way that would secure the liberty of most, if not all. In the second half of her book, Zuckert places selected later works—La Mandragola, The Art of War, The Life of Castruccio Castracani, Clizia, and Florentine Histories—under scrutiny, showing how Machiavelli further developed certain aspects of his thought in these works. In The Art of War, for example, he explains more concretely how and to what extent the principles of organization he advanced in The Prince and the Discourses ought to be applied in modern circumstances. Because human beings act primarily on passions, Machiavelli attempts to show readers what those passions are and how they can be guided to have productive rather than destructive results. A stunning and ambitious analysis, Machiavelli’s Politics brilliantly shows how many conflicting perspectives do inform Machiavelli’s teachings, but that one needs to consider all of his works in order to understand how they cohere into a unified political view. This is a magisterial work that cannot be ignored if a comprehensive understanding of the philosopher is to be obtained. (shrink)