Who would believe that so small a space could contain the images of all the universe?

Beauty perishes in life, but is immortal in art.

Art is never finished, only abandoned.

It vexes me greatly that having to earn my living has forced me to interrupt the work and to attend to small matters.

Experiment is the sole interpreter of the artifices of Nature.

Now do you not see that the eye embraces the beauty of the whole world? It counsels and corrects all the arts of mankind... it is the prince of mathematics, and the sciences founded on it are absolutely certain. It has measured the distances and sizes of the stars it has discovered the elements and their location... it has given birth to architecture and to perspective and to the divine art of painting.

Everything proceeds from everything else and everything becomes everything, and everything can be turned into everything else.