SOCRATES: Why, because the argument shows that the endeavour of every animal is to the reverse of his bodily state.
PROTARCHUS: Yes.
SOCRATES: And the impulse which leads him to the opposite of what he is experiencing proves that he has a memory of the opposite state.
PROTARCHUS: True.
SOCRATES: And the argument, having proved that memory attracts us towards the objects of desire, proves also that the impulses and the desires and the moving principle in every living being have their origin in the soul.
PROTARCHUS: Most true.
SOCRATES: The argument will not allow that our body either hungers or thirsts or has any similar experience.
PROTARCHUS: Quite right.
SOCRATES: Let me make a further observation; the argument appears to me to imply that there is a kind of life which consists in these affections.
PROTARCHUS: Of what affections, and of what kind of life, are you speaking?