Chapter 7, Part 1A - Lieh Tzu

In the course of Lieh Tzu's instruction by Hu-ch'iu Tzu-lin, the latter said to him: 'You must familiarize yourself with the theory of consequents before you can talk of regulating conduct.'

Lieh Tzu said: 'Will you explain what you mean by the theory of consequents?'

'Look at your shadow,' said his Master, 'and then you will know.'

Lieh turned and looked at his shadow. When his body was bent, the shadow was crooked; when his body was upright, the shadow was straight. Thus it appeared that the attributes of straightness and crookedness were not inherent in the shadow, but corresponded to certain positions of the body. Likewise, contraction and extension are not inherent in the subject, but take place in obedience to external causes. Holding this theory of consequents is to be at home in the antecedent.
~ Lionel Giles translation via Terebess Asia Online ~

Go here to read the introductory post to the chapters of the Book of Lieh Tzu.