Confucius

The superior man is distressed by the limitation of his ability; he is not distressed by the fact that men do not recognize the ability he has.

Can there be a love which does not make demands on its object?

He who remembers from day to day what he has yet to learn, and from month to month what he has learned already, may be said to have a love of learning.

The palest ink is better than the most retentive memory.

A man who has committed a mistake and doesn't correct it, is committing another mistake.

I hear and I forget. I see and I remember. I do and I understand.

If I am walking with two other men, each of them will serve as my teacher. I will pick out the good points of the one and imitate them, and the bad points of the other and correct them in myself.

Recompense injury with justice and recompense kindness with kindness.

The superior man will watch over himself when he is alone. He examines his heart that there may be nothing wrong there, and that he may have no cause of dissatisfaction with himself.

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