The Phaedo is a Socratic dialogue written by the philosopher Plato. The dialogue gives an account of the final hours of Socrates and his conversations from the viewpoint of a bystander. Several arguments are presented and discussed in The Phaedo, in addition to these a myth concerning the afterlife is presented by Socrates. The main arguments from The Phaedo are the argument from opposites, the argument from recollection, the argument from affinities, and a fourth argument concerning the difference between corporeal and incorporeal things. These arguments aim at proving the immortality of the soul, and also attempt to prove the Pythagorean conception of reincarnation. The myth presented near the closing of the dialogue concerns the terminus of the soul, which depends on how pure or corrupt it is at death. The dramatic death of Socrates concludes the dialogue.The argument from opposites claims that the soul is reincarnated. It lies on the principle that things transition from two opposites in a cycle. Before something becomes small, it was large, for it could not have been small before it became small. Moreover, if things only became smaller, and not larger, eventually everything would be miniscule. And if it was the other way around, where everything only became larger, and not smaller, everything would eventually be one thing, because everything would have joined together. If this were the case then we would notice that things only become smaller, shorter, or uglier, and never their opposites, or vice versa. Socrates shows that things do transition from two opposites, by referencing to observable examples. He contrasts this to death, and claims that there has to be a cycle of becoming alive and becoming dead, or else everything would become dead, or vice versa.