"Plato himself concludes his Phaedon with declaring"

Plato’s Phaedo is one of the his great dialogues, written in the same period as the Republic and the Symposium.  The Phaedo depicts the death of Socrates.  Socrates discusses the nature of the afterlife on his last day before being executed by drinking hemlock.  He has been sentenced to death by an Athenian jury for not believing in the gods of the state and for corrupting the youth of the city. The dialogue is told from the perspective of one of Socrates' students, Phaedo of Elis.  Socrates explores various arguments for the soul's immortality in order to show that there is an afterlife in which the soul will dwell following death.

Socrates and Plato
Public DomainSocrates and Plato - Credit: Herrad von Landsberg c.1180