It is a far worthier thing to read by the light of experience than to adorn oneself with the labors of others.

Every now and then go away, have a little relaxation, for when you come back to your work your judgment will be surer.

Demetrius was wont to say that there was no difference between the words and speech of the unskilled and ignorant and the sounds and rumblings caused by the stomach being full of superfluous wind. This he said, not without reason, for, as he held, it did not in the least matter from what part of them the voice emanated, whether from the lower parts or the mouth, since the one and the other were of equal worth and importance.

The human being, creature of eyes, needs the image.

Nothing will be left, Nothing in the air, nothing under the earth, nothing in the waters. All will be exterminated.

When the sun is covered by clouds, objects are less conspicuous, because there is little difference between the light and shade of the trees and the buildings being illuminated by the brightness of the atmosphere which surrounds the objects in such a way that the shadows are few, and these few fade away so that their outline is lost in haze.

When the thing taken into union is perfectly adapted to that which receives it, the result is delight and pleasure and satisfaction.