Book excerpt: Epicureanism is not only a defence of pleasure: it is also a philosophy of science and knowledge. This edited collection explores new pathways for the study of Epicurean scientific thought, a hitherto still understudied domain, and engages systematically and critically with existing theories. It shows that the philosophy of Epicurus and his heirs, from antiquity to the classical age, founded a rigorous and coherent conception of knowledge. This first part of a two-volume set examines more specifically the contribution of Epicureanism in the fields of language, medicine, and meteorology (i.e., celestial, geological and atmospheric phenomena). Offering a renewed image of Epicureanism, the book includes studies on the nature of human language and on the linguistic aspects of scientific discourse; on the relationship between Epicureanism and ancient medicine, from Hippocrates to Galen; on meteorological phenomena and the method of explaining them; and on the reception of Epicurus's legacy in Gassendi.