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.

First study the science, and then practice the art which is born of that science.

It is an acknowledged fact that we perceive errors in the work of others more readily than in our own.

Putting your hand into a river, you simultaneously touch the last of what is passing and the first of what is coming.

If you put on more clothes as the cold increases, it will have no power to hurt you. Let us hope that.

You grow in reputation like bread in the hands of a child.

The knowledge of the past times and of the places of the earth is both an ornament and nutriment to the human mind.