《孟子·告子章句下·第二节》
曹交说： 我听说周文王身高十尺，成汤王身高九尺，如今我曹交身高九尺四寸，同样是吃粮食而已，要怎样才能成为尧、舜呢？ 
 交闻文王十尺，汤九尺，今交九尺四寸以长，食粟而已，如何则可？ 
Cao Jiao said: I heard that King Wen of Zhou was ten feet long, and King Tang was nine feet long. Today, I, Cao Jiao, is nine feet and four inches long, and I have also eaten food. How can I become Yao and Shun?