Though (the Tao) is uncreated itself, it creates all things. Because it has no substance, it can enter into where there is no space. Exercising by returning to itself, winning victories by remaining gentle and yielding, it is softer than anything, and therefore overcomes everything hard.
LaoziIn the world there is nothing more submissive and weak than water. Yet for attacking that which is hard and strong nothing can surpass it.
Laozi