《庄子·外篇·天地》
老聃说： 这只不过是聪明的小吏供职时为技艺所拘系、劳苦身躯担惊受怕的情况。
老聃曰： 是胥易技系，劳形怵心者也。
Lao Dan said: This is just a case where a clever clerk is bound by his skills when he is on duty, and his body is tired and frightened.