Attempt easy tasks as if they were difficult, and difficult as if they were easy; in the one case that confidence may not fall asleep, in the other that it may not be dismayed.
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.