The limiting surface of one thing is the beginning of another.

If you do not rest on the good foundation of nature, you will labour with little honor and less profit.

The poet ranks far below the painter in the representation of visible things, and far below the musician in that of invisible things.

Advertisers constantly invent cures to which there is no disease.

You should look at certain walls stained with damp, or at stones of uneven color. If you have to invent some backgrounds you will be able to see in these the likeness of divine landscapes, adorned with mountains, ruins, rocks, woods, great plains, hills and valleys in great variety; and expressions of faces and clothes and an infinity of things which you will be able to reduce to their complete and proper forms. In such walls the same thing happens as in the sound of bells, in whose stroke you may find every named word which you can imagine.

Learning is the only thing the mind never exhausts, never fears, and never regrets.

I have been impressed with the urgency of doing.