Errors accumulate in the sketch and compound in the model.

Men are themselves the source of their own fortune and misfortune.

Nothing overshadows truth so much as authority.

It is very rarely granted even to Nature herself to produce anything absolutely perfect in every part.

We must always take from nature what we paint and always choose the most beautiful things.

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 person can do anything if they only will it strongly enough.