Phaedo is a dialogue of Plato that was known among its first readers as On the Soul.  This work depicts Socrates death.  In this dialogue, the nature of the afterlife is discussed on Socrates last day.  He had been sentenced to death for the audacity of not believing in the gods of the Athens and probably more so for believing in philosopher kings over ‘democracy’.   Both of these elements were seen as corrupting the youth of the city-state.

Told from the perspective of Phaedo , this dialectic explores arguments for immorality of the soul.   In doing so, it touches on multiple dualities that I believe make for some fascinating reading and contemplation.

Phaedo may be read in its entirety here:

http://www.bartleby.com/2/1/31.html

Or listened to in its audiobook format here: