《淮南子·原道训》
由此看来，先行者就是后继者射箭的箭靶，犹如那矛戟的柄套和锋刃，锋刃受损而柄套却安然无事，这是为什么呢？
由此观之，先者，则后者之弓矢质的也。犹錞之与刃，刃犯难而錞无患者，何也？
By this way, the leader is the target for the follower to shoot arrows, like the shaft and the blade of a halberd, the blade is damaged but the shaft is safe and sound, why is that?