No art, however minor, demands less than total dedication if you want to excel in it.
When I investigate and when I discover that the forces of the heavens and the planets are within ourselves, then truly I seem to be living among the gods.
Errors accumulate in the sketch and compound in the model.
The city is like a great house, and the house in its turn a small city.
Nothing overshadows truth so much as authority.
... the movements of the body reveal the movements of the soul.