Hermann Karl Usener published his monumental Epicurea in 1887. The volume is a collection of Epicurean texts and citations from a wide range of classical authors including Arrian, Cicero, Diodorus, Euripides, Plato and Seneca. The volume includes critical texts of Epicurus' most important letters: Letter to Menoeceus, Letter to Herodotus and Letter to Pythocles, preserved by the third-century compiler Diogenes Laertius. The letters give important summaries of Epicurus' philosophy. Usener's pioneering work represented the first attempt to deal critically with the (...) manuscript traditions behind Epicurean texts. His reconstructions of the texts included in this volume are based on a thorough understanding of the trajectories of textual transmission. Each text is supported by a detailed critical apparatus, and another apparatus records manuscript glosses and scholia. This work provided for the first time accurate and reliable texts for the critical study of Epicureanism. (shrink)

The central thesis of this paper is that Epicurus held that swerves of the constituent atoms of agents' minds cause the agents' volitions from the bottom up. "De Rerum Natura" 2.216-93 is examined at length, and Lucretius is found to be making the following claims: both atoms and macroscopic bodies sometimes swerve as they fall, but so minimally that they are undetectable. Swerves are oblique deviations, not right-angled turns. Swerves must be posited to account both for cosmogonic collisions quite generally (...) and for every "free volition," including those of animals. All volitions are fresh starts of macroscopic motion, caused by that "something in our chests" which later philosophers would call 'the faculty of will.' Since nothing can come to be from nothing, volitions must be caused from the bottom up by swerves, fresh starts in the mind's atoms motions caused by the atoms' inherent swerviness. This is what Lucretius is saying, and what Epicurus had to say in order to defend both libertarianism and atomism. Modern scholars are wrong, then, in rejecting the interpretation of Guissani and Bailey, which was crudely stated, but substantively correct. The rival interpretations of Furley, Fowler, and Englert do not do justice to Epicurus' libertarianism, and that of Sedley does not do justice to his atomism, which entails universal bottom-up causation. Epicurus did not himself draw much attention to his positive doctrine of the swerve, preferring to emphasize the untenability of the deterministic alternative. The notoriety of the doctrine in Cicero's day is due primarily to Chrysippus, who insisted that swerves cannot occur, since they would be 'uncaused' motions, and secondarily to Carneades and Zeno of Sidon. (shrink)

Lucretius' account of the origin of life, the origin of species, and human prehistory is the longest and most detailed account extant from the ancient world. It gives an anti-teleological mechanistic theory of zoogony and the origin of species that does away with the need for any divine aid or design in the process, and accordingly it has been seen as a forerunner of Darwin's theory of evolution. This commentary locates Lucretius in both the ancient and modern contexts, and treats (...) Lucretius' ideas as very much alive rather than as historical concepts. The recent revival of creationism makes this study particularly relevant to contemporary debate, and indeed, many of the central questions posed by creationists are those Lucretius attempts to answer. (shrink)

This book is designed to appeal both to those interested in Roman poetry and to specialists in ancient philosophy. In it David Sedley explores Lucretius ' complex relationship with Greek culture, in particular with Empedocles, whose poetry was the model for his own, with Epicurus, the source of his philosophical inspiration, and with the Greek language itself. He includes a detailed reconstruction of Epicurus' great treatise On Nature, and seeks to show how Lucretius worked with this as his sole philosophical (...) source, but gradually emancipated himself from its structure, transforming its raw contents into something radically new. By pursuing these themes, the book uncovers many unrecognised aspects of Lucretius ' methods and achievements as a poetic craftsman. (shrink)