Learning without thought is labor lost; thought without learning is perilous.

Things that are done, it is needless to speak about...things that are past, it is needless to blame.

[The superior man] acts before he speaks, and afterwards speaks according to his actions.

When you have faults, do not fear to abandon them.

If a man withdraws his mind from the love of beauty, and applies it as sincerely to the love of the virtuous; if, in serving his parents, he can exert his utmost strength; if, in serving his prince, he can devote his life; if in his intercourse with his friends, his words are sincere - although men say that he has not learned, I will certainly say that he has.