There is none who cannot teach somebody something, and there is none so excellent but he is excelled.
A sage has one advantage; he is immortal. If this is not his century, many others will be.
There is always time to add a word, never to withdraw one.
True knowledge lies in knowing how to live.
He that has satisfied his thirst turns his back on the well.
Advice is sometimes transmitted more successfully through a joke than grave teaching.
