As is known, the founder of the Stoic School was Zeno, of his writings, only a few fragments remain. And they were, Chrysipus, one of his most important disciples, together with his successors, Zeno of Tarsus and Diogenes of Selucia, who, when they traveled to Athens, caused admiration among the young Romans.
Unlike Pla to who downplayed sensitive perception, the Stoics believed that it was precisely in sensitive experience that all knowledge lay. The knowledge of activities and states of mind was therefore reduced to perception as they were considered merely material processes.
They also divided logic into dialectics and rhetoric, to which some added the theory of definitions and theories of criteria of truth. In this sense, the Stoics could be considered in line with the empirisimo, as they devoted great attention to the problem of the criterion of truth.