《淮南子·原道训》
寄存于小处却能包容广大，保持于中间却能控制左右；行动看似柔弱而实际刚强，以此推移变化，掌握了 一 这道，就能以少制多。
托小以包大，在中以制外；行柔而刚，用弱而强；转化推移，得一之道，而以少正多。
Subsisting in the small, he can embrace the large; keeping to the center, he can control the extremities; his action seems feeble, yet it is really strong; by this he pushes his changes and transformations through, and masters this Tao. Thus he with the less overcomes the greater.