The superior man is intelligently, not blindly, faithful.

Have no friends not equal to yourself.

It is only the very wisest and the very stupidest who never change.

Study the past if you would define the future. I am not one who was born in the possession of knowledge; I am one who is fond of antiquity, and earnest in seeking it there. Learning without thought is labor lost; thought without learning is perilous.

Speak the truth, do not yield to anger; give, if thou art asked for little; by these three steps thou wilt go near the gods.

To understand yourself is the key to wisdom.

Not to alter one's faults is to be faulty indeed.