What you do not want done to yourself, do not do to others. --
Confucius, The Confucian Analects

When a man's knowledge is sufficient to attain, and his virtue is not sufficient to enable him to hold, whatever he may have gained, he will lose again. -- Confucius, The Confucian Analects

When we see men of worth, we should think of equaling them; when we see men of a contrary character, we should turn inwards and examine ourselves. --Confucius, The Confucian Analects

When you know a thing, to hold that you know it; and when you do not know a thing, to allow that you do not know it - this is knowledge. ----
Confucius, The Confucian Analects

With coarse rice to eat, with water to drink, and my bended arm for a pillow - I have still joy in the midst of these things. Riches and honors acquired by unrighteousness are to me as a floating cloud. --- Confucius, The Confucian Analects