To practice five things under all circumstances constitutes perfect virtue; these five are gravity, generosity of soul, sincerity, earnestness, and kindness.
The superior man is distressed by the limitations of his ability; he is not distressed by the fact that men do not recognize the ability that he has.
If you think in terms of a year, plant a seed; if in terms of ten years, plant trees; if in terms of 100 years, teach the people.
If you look into your own heart, and you find nothing wrong there, what is there to worry about? What is there to fear?