The time has come for Ethics in Eudeme. Like the Nicomachean Ethics, this other Ethics attributed to Aristotle has as its object the completion of humanity in man, a completion which is confused with happiness. But while the first treatise is expressly linked to a political project, the second insists on the intimate – and nevertheless universal – dimension of ethics: “If the beauty of a life resides in things obtained by chance or by nature, many people could not hope for it: their effort would not make it possible to obtain it, it would not depend on them and could not be their object of study. On the other hand, if it consists of a certain quality that a person and his actions have, the good of life could be more common and more divine. » This affirmation of individual choice as a principle of ethical conduct is at the source of long Western reflection on moral and legal responsibility. This is how the Eudemus Ethics, which for a long time remained in the shadow of the Nicomachean Ethics, is today the subject of a real rediscovery, to which the present edition intends to contribute.