The painter's mind is a copy of the divine mind, since it operates freely in creating the many kinds of animals, plants, fruits, landscapes, countrysides, ruins, and awe-inspiring places.

The water which rises in the mountains is the blood which keeps the mountain in life.

That which has no limitations, has no form.

Motion is created by the destruction of balance.

Mechanics is the paradise of the mathematical sciences because by means of it one comes to the fruits of mathematics.

I abhor the supreme folly of those who blame the disciples of nature in defiance of those masters who were themselves her pupils

All our knowledge hast its origins in our perceptions … In nature there is no effect without a cause … Experience never errs; it is only your judgments that err by promising themselves effects such as are not caused by your experiments … Science is the observation of things possible, whether present or past; prescience is the knowledge of things which may come to pass.