 There is an element which differentiates Philo from his contemporary philosophers and rabbis: the absence of a master. It is impossible to find in his vast corpus the name of someone who initiated him to philosophy or to Biblical exegesis. Why this silence about his masters? One possible explanation is that for Philo, transmission is greater than the transmitters. He is consistent regarding this position when he speaks very little of himself. His main idea is that “the only good that is infallible and firm is faith in God” (Abr. 268). The human being can improve herself, and she can have a clear conscience (suneidêsis is a key word of Philo’s ethical vocabulary) of the ethical issues, but this does not allow her to assert her real existence.