The god is the beautiful.

Necessity, who is the mother of our invention.

A house that has a library in it has a soul.

A written discourse on any subject is bound to contain much that is fanciful.

The good man is the only excellent musician, because he gives forth a perfect harmony not with a lyre or other instrument but with the whole of his life.

Renouncing the honors at which the world aims, I desire only to know the truth... and to the maximum of power, I exhort all other men to do the same.

For all good and evil, whether in the body or in human nature, originates ... in the soul, and overflows from thence, as from the head into the eyes.