Ignorance is the night of the mind, but a night without moon or star.

I will not be concerned at other men's not knowing me;I will be concerned at my own want of ability.

The superior man acts before he speaks, and afterwards speaks according to his action.

In antiquity men studied for their own sake; nowadays men study for the sake of impressing others.

If language is not rectified, words do not correspond to meaning, and if words do not correspond to meaning, our deeds cannot be accomplished.

The virtuous man is driven by responsibility, the non-virtuous man is driven by profit.

The Master said, If out of the three hundred songs I had to take one phrase to cover all my teachings, I would say 'Let there be no evil in your thoughts.'