What is acceptable we call acceptable; what is unacceptable we call unacceptable. A road is made by people walking on it; things are so because they are called so. What makes them so? Making them so makes them so. What makes them not so? Making them not so makes them not so. Things all must have that which is so; things all must have that which is acceptable. There is nothing that is not so, nothing that is not acceptable.
From Burton Watson’s translation of Zhuangzi, Chuang-Tzu: Basic Writings, Section 2.