Full Idea
Self-motion is of the very nature of the soul.
Gist of Idea
The soul is self-motion
Source
Plato (Phaedrus [c.366 BCE], 245e)
Book Reference
Plato: 'Phaedrus and Letters VII and VIII', ed/tr. Hamilton,Walter [Penguin 1973], p.49
A Reaction
This culminates a length discussion of the soul. He gives an implausible argument that the soul is immortal, because it could never cease its self-motion. Why are we so unimpressed by motion, when the Greeks were amazed by it?