Abstract
This is the first French translation of Galen’s De optima doctrina, which articulates his view “On the Best Teaching”. The translation is preceded by an introduction on the context in which this text was written, especially on the relationship of Galen towards scepticism in general and Favorinus of Arles in particular. Although it is hard to characterize this “treatise” in terms of its date of redaction and its form, nonetheless it yields clear information on Galen’s critiques with regards to the “Platonists” and the “Pyrrhonists”.