There still remain three studies suitable for free man. Arithmetic is one of them.

When you swear, swear seriously and solemnly, but at the same time with a smile, for a smile is the twin sister of seriousness.

When man is not properly trained, he is the most savage animal on the face of the globe.

As a breath of wind or some echo rebounds from smooth, hard surfaces and returns to the source from which it issued, so the stream of beauty passes back into its possessor through his eyes, which is its natural route to the soul; arriving there and setting him all aflutter, it waters the passages of the feathers and causes the wings to grow, and fills the soul of the loved one in his turn with love.

Better a good enemy than a bad friend.

And the true order of going, or being led by another, to the things of love, is to begin from the beauties of earth.

Of all the things of a man's soul which he has within him, justice is the greatest good and injustice the greatest evil.