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.
A common error of ignorance is to maintain that what one does not know does not exist.
A person can do anything if they only will it strongly enough.
Errors accumulate in the sketch and compound in the model.
The greatest work of an artist is the history of a painting.
We must always take from nature what we paint and always choose the most beautiful things.