All men know the use of the useful, but nobody knows the use of the useless. Where can I find a man who has forgotten words so that I can have a word with him?
Great understanding is broad and unhurried; little understanding is cramped and busy
A frog in a well cannot conceive of the ocean.
Let everything be allowed to do what it naturally does, so that its nature will be satisfied.
The torch of doubt and chaos, this is what the sage steers by.
Big? Sure. But, he can't catch mice! So for your big tree. No use? Then plant it in the wasteland - in emptiness. Walk idly around it and rest under it's shadow. No axe or saw prepares its end. No one will ever cut it down. Useless? You should worry!.