Phaedo

A number of friends gather Socrates in his cell, including his old friend Crito and two Pythagorean philosophers, Simmias and Cebes. Socrates begins, as usual, the story by saying that suicide is wrong, because a true philosopher must wait for death and not cause it voluntarily. The soul is immortal, and the philosopher spent his life in the form, so that it detaches from the body’s needs. The thesis of the immortality of the soul is put in four points.