《荀子·哀公》
现在东野毕驾车，登上车子手握缰绳，马嚼子和马身都端正了；慢走快跑驱赶奔驰，朝廷所规定的礼仪全部达到了；经历各种险阻而到达了远方，马的气力也就用光了。然而他还是要求马不停步，因此我知道他的马会逃跑。 定公说： 好！
今东野毕之驭，上车执辔衔，体正矣；步骤驰骋，朝礼毕矣；历险致远，马力尽矣；然犹求马不已，是以知之也。 
Now Dongye Bi is driving, getting on the carriage and holding the reins, the horse's bit and body are all straight; walking slowly, running fast, driving and galloping, all the etiquette stipulated by the imperial court has been achieved; going through various obstacles and reaching the distance, the horse's energy is exhausted. However, he still asked the horse to keep going, so I knew his horse would run away. Dinggong said: Good!