I do not want a friend who smiles when I smile, who weeps when I weep; for my shadow in the pool can do better than that.
When you see a good man, think of emulating him; when you see a bad man, examine your own heart.
The superior man is slow in his words and earnest in his conduct.
If you don't know how to live, why wonder about death?
Happiness does not consist in having what you want, but in wanting what you have
The hardest thing of all is to find a black cat in a dark room, especially if there is no cat.