An introduction to Thomas Hobbes as a systematic and not merely political philosopher. Best known for his contributions to political philosophy, Thomas Hobbes set out to develop a coherent philosophical system extending from logic and natural philosophy to civil and religious philosophy. In this introduction to Hobbes’s thought, Otfried Höffe begins by providing an overview of the entire scope of his work, making clear its systematic character through analysis of his natural philosophy, his individual and social anthropology, and his political (...) thought. He then offers an innovative examination of religious and ecclesiastical questions, touching not only on the political implications of religion so important to Hobbes, but also on his attempt to reconstruct Christianity in terms of a materialistic philosophy. He also explores Hobbes’s continuous critique of Aristotle and Aristotelian Scholastics, in which Höffe argues that Hobbes and Aristotle have much more in common philosophically than is normally supposed—and certainly more than Hobbes himself acknowledged. Finally, Höffe sketches the influence Hobbes had and continues to have on the development of legal and political philosophy. “A thoroughly successful introduction to the philosophy of Thomas Hobbes ” — Reinhard Brandt, in Süddeutsche Zeitung, in praise of the German edition. (shrink)

This paper reconstructs the development of Mersenne's reflections concerning optics. I argue that Mersenne's optical writings provide crucial insights into Mersenne's Aristotelianism. I reconstruct Mersenne's attempt of explaining the new ideas on light, which were advanced by Kepler, Descartes and Hobbes within Aristotle's natural philosophy. Mersenne explained Kepler's work on light within the Scholastic tradition. In the 1640s, Mersenne was stimulated by the debate concerning Descartes' theory of light, which he accepted only in 1648. Indeed, Mersenne first explained Descartes' law (...) of refraction by means of Hobbes physics. However, Mersenne always wanted to remain faithful to Aristotle. (shrink)

Hobbes on morality and the modern science of motion -- Freedom as the realization of desire -- Leviathan : the making of a mortal God -- John Locke : underlaborer of the new sciences -- Locke on the freedom of the human spirit -- From Berkeley to Hume : the radicalization of empiricism -- Hume's science of the dynamics of the passions -- Adam Smith deciphers the invisible hand of the market -- Contradictions of economic life -- I think : (...) Descartes' foundation of modern science -- God and the good society -- Leibniz's discovery of universal freedom -- The best of all possible worlds -- Justifying God's ways : Kant's progress from Leibniz through Pope to Rousseau -- Rousseau's reasoning of the heart. (shrink)

_ Source: _Volume 29, Issue 1, pp 39 - 65 Since Euclid, optics has been considered a geometrical science, which Aristotle defines as a “mixed” mathematical science. Hobbes follows this tradition and clearly places optics among physical sciences. However, modern scholars point to a confusion between geometry and physics and do not seem to agree about the way Hobbes mixes both sciences. In this paper, I return to this alleged confusion and intend to emphasize the peculiarity of Hobbes’s geometrical optics. (...) This paper suggests that Hobbes’s conception of geometrical optics, as a mixed mathematical science, greatly differs from Descartes’s one, mainly because they do not share the same “mechanical conception of nature.” I will argue that Hobbes and Descartes also have in common the quest for a different kind of geometry for their optics, different from that of the Ancients. I will show that this departure is not recent since Hobbes’s approach is already evident in 1636, when he judges the demonstrations of his contemporary friends, Claude Mydorge and Walter Warner. Finally the paper broadly suggests what is noteworthy in Hobbes’s optics, that is, the importance of the idea of force in his mechanics, although he was not able to conceptualize it in other terms than “quickness.”. (shrink)