Gentlemen cherish worth; the vulgar cherish dirt. Gentlemen trust in justice; the vulgar trust in favor.
Coarse rice to eat, water to drink, my bended arm for a pillow - therein is happiness. Wealth and rank attained through immoral means are nothing but drifting clouds.
Worry not that no one knows you; seek to be worth knowing.
He who knows all the answers has not been asked all the questions.
A man who reviews the old so as to find out the new is qualified to teach others.
They must often change, who would be constant in happiness or wisdom.