Control thy passions lest they take vengence on thee.

When you are offended at any man's fault, turn to yourself and study your own failings. Then you will forget your anger.

You ought to choose both physician and friend, not the most agreeable, but the most useful.

Not every difficult and dangerous thing is suitable for training, but only that which is conducive to success in achieving the object of our effort.

Know, first, who you are, and then adorn yourself accordingly.

If you see anybody wail and complain, call him a slave, though he be clad in purple.

A ship should not be held by a single anchor; neither should life depend upon a single hope.