A good man will certainly also possess courage; but a brave man is not necessarily good.

Yin and yang, male and female, strong and weak, rigid and tender, heaven and earth, light and darkness, thunder and lightning, cold and warmth, good and evil...the interplay of opposite principles constitutes the universe.

If names be not correct, language is not in accordance with the truth of things.

If you yourself desire establishment, then help others to get establishment; if you yourself want success, then help others to attain success.

He who chases two rabbits, catches none.

Men's natures are alike; it is their habits that separate them.

A man should demand much from himself, but little from others. When you meet a man of worth, think how you may attain to his excellence. When you meet an unworthy one, then look within and examine yourself.