The poor go to war, to fight and die for the delights, riches, and superfluities of others.

Distressed valor challenges great respect, even from an enemy.

The usual disease of princes, grasping covetousness, had made them suspicious and quarrelsome neighbors.

... being perpetually charmed by his familiar siren, that is, by his geometry, he neglected to eat and drink and took no care of his person; that he was often carried by force to the baths, and when there he would trace geometrical figures in the ashes of the fire, and with his finger draws lines upon his body when it was anointed with oil, being in a state of great ecstasy and divinely possessed by his science.

For he who gives no fuel to fire puts it out, and likewise he who does not in the beginning nurse his wrath and does not puff himself up with anger takes precautions against it and destroys it.

Beauty is the flower of virtue.

Painting is silent poetry, and poetry is painting that speaks.