There is nothing so delightful as the hearing, or the speaking of truth. For this reason, there is no conversation so agreeable as that of the man of integrity, who hears without any intention to betray, and speaks without any intention to deceive.

Music is to the mind as air is to the body.

Poverty doesn't come because of the decrease of wealth but because of the increase of desires.

Moderation, which consists in indifference about little things, and in a prudent and well-proportioned zeal about things of importance, can proceed from nothing but true knowledge, which has its foundation in self-acquaintance.

Let no-one ignorant of geometry enter. Said to have been inscribed above the door of Plato's Academy.

I will prove by my life that my critics are liars.

You ought not attempt to cure the eyes without the head, or the head without the body, so neither ought you attempt to cure the body without the soul.