A good painter has two main objects to paint, man and the intention of his soul.
The days are long enough for those who use them.
Anyone who conducts an argument by appealing to authority is not using his intelligence; he is just using his memory.
The senses are of the earth, the reason stands apart from them in contemplation.
O Time with your teethy years! You swallow up all things little by little in a slow-motion, wrinkling process of dying.
Avoid the precepts of those thinkers whose reasoning is not confirmed by experience.