Published in The Time and the Eternity in the Ancient and Medieval World

Keywords: Keywords: Dualism, Immortality of the soul, Phaedo, Plato, Psyche.

Plato is one of the most important thinkers for the Philosophy, with theories that elapsed centuries and they influenced countless thought currents. Her conception dualist of the reality and of the man it went source to several researches and it still generates discussions in the philosophical debates of the present time. The present article has the intention of presenting the arguments of the book Phaedo regarding the immortality of the soul. For so much, there will be an exhibition of the main points that Plato presents in your cosmological conception and of psyche, as well as the myths on the origin and destiny of the souls after the death, in order to base the understanding of the arguments in favor of the immortality.