 Galen's education had exposed him to the five major schools of thought (Platonists, Peripatetics, Stoics, Epicureans, Pyrrhonists), with teachers from the Rationalist sect and from the Empiricist sect.Galen was well known for his advancements in medicine and the circulatory system, but he was also concerned with philosophy.He developed his own tripartite soul model following the examples of Plato; some scholars refer to him as a Platonist.