《论衡·卷八·儒增篇》
善射的人集中精力与平常人一样，古人加倍用心跟今人相同，让现在能射箭的人在野外射禽兽，他们想获得它，不是把全部力量都使出来了吗！
巧人之精，与拙人等；古人之诚与今人同。使当今射工，射禽兽於野，其欲得之，不余精力乎？
The concentration of a good archer is the same as that of ordinary people, and the focus of the ancients is not different from that of modern people. When an archer of today is in the wilderness shooting birds and beasts, don’t they try to use all their strength in order to get their target?