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Hui Tzǔ said to Chuang Tzǔ：“I have a large tree，which men call the ailanthus.Its trunk is so irregular and knotty that a carpenter cannot apply his line to it.Its small branches are so twisted that the square and compasses cannot be used on them.It stands by the roadside，but is not looked at by any carpenter.Now your words，sir，are big but useless and also not wanted by anybody.”
Chuang Tzǔ said：“Have you not seen a wild cat or a weasel？It lies，crouching down，in wait for its prey.East and west it leaps about，avoiding neither what is high nor what is low.At last it is caught in a trap or dies in a net.Again there is the yak，which is as large as the clouds across the sky.But it cannot catch mice.Now you have a large tree and are anxious about its uselessness.Why do you not plant it in the domain of nonexistence，in a wide and barren wild？By its side you may wander in nonaction；under it you may sleep in happiness.Neither bill nor ax would shorten its term of existence.Being of no use to others，it itself would be free from harm.”

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