Confucius

Forget injuries; never forget kindness.

By three methods we may learn wisdom: first, by reflection, which is noblest; second, by imitation, which is easiest; and third, by experience, which is the most bitter.

Tzu-kung asked, 'Is there a single word which can be a guide to conduct throughout one's life?' The Master said, 'It is perhaps the word 'shu.' Do not impose on others what you yourself do not desire.

Life is really simple, but men insist on making it complicated.

Real knowledge is to know the extent of one's ignorance.

The Three Armies can be deprived of their commanding officer, but even a common man cannot be deprived of his purpose.

As in the case of making a mound, if, before the very last basketful, I stop, then I shall have stopped. As in the case of leveling the ground, if, though tipping only one basketful, I am going forward, then I shall be making progress.

Those who do not study are only cattle dressed up in men's clothes.

You do not understand even life. How can you understand death?

It is not the failure of others to appreciate your abilities that should trouble you, but rather your failure to appreciate theirs.