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

A deaf and dumb person who sees two men in conversation - may nevertheless understand from the attitudes and gestures of the speakers, how well their discussion is getting along.

Even the richest soil, if left uncultivated will produce the rankest weeds.

The first of all simple colours is White ... We shall set down White for the representative of light, without which no colour can be seen; Yellow for the earth; Green for water; Blue for air; Red for fire; and Black for total darkness.

Among the great things which are found among us the existence of Nothing is the greatest.

You do ill if you praise, but worse if you censure, what you do not understand.

He who never puts his trust in any man will never be deceived.