The superior man will watch over himself when he is alone. He examines his heart that there may be nothing wrong there, and that he may have no cause of dissatisfaction with himself.

What is necessary is to rectify names.

Some are born with knowledge, some derive it from study, and some acquire it only after a painful realization of their ignorance. But the knowledge being possessed, it comes to the same thing. Some study with a natural ease, some from a desire for advantages, and some by strenuous effort. But the achievement being made, it comes to the same thing.

Only one who bursts with enthusiasm do I instruct; Only one who bubbles with excitement do I enlighten. If I hold up one corner and you do not come back to me with the other three, I do not continue the lesson.

A man without a mustache is a man without a soul.

The chase of gain is rich in hate

A man is great not because he hasn't failed; a man is great because failure hasn't stopped him.