《淮南子·主术训》
那优秀的驾御手，使马儿的体形动作和车子协调一致，御手的心思想法又和马儿沟通一致，那么就是经过险阻，到达远方，进退转弯，没有不称心的。
今夫御者，马体调于车，御心和于马，则历险致远，进退周游，莫不如志。
That excellent driver, the horse's body movements and the car are coordinated, and the coachman's thoughts are in harmony with the horse, then even through dangers and reaching far away, advancing and retreating, there is nothing unsatisfactory.