Learning acquired in youth arrests the evil of old age; and if you understand that old age has wisdom for its food, you will so conduct yourself in youth that your old age will not lack for nourishment.

Just as iron rusts from disuse, and stagnant water putrefies, or when cold turns to ice, so our intellect wastes unless it is kept in use.

One painter ought never to imitate the manner of any other; because in that case he cannot be called the child of nature, but the grandchild. It is always best to have recourse to nature, which is replete with such abundance of objects, than to the productions of other masters, who learnt everything from her.

He who does not oppose evil......commands it to be done.

To discover the soul living in somebody's body, we watch the surrounding of the body, and if it's messy and disordered, so is the soul.

Nature varies the seed according to the variety of the things she desires to produce in the world.

Especially learn how to see.