Tao Te Ching
[Link]: A complete Tao Te Ching, translated by Dr. Lin Yutang
"The softest substance of the world
Goes through the hardest.
That-which-is-without-form penetrates that-which-has-no-crevice;
Through this I know the benefit of taking no action.
The teaching without words
And the benefit of taking no action
Are without compare in the universe."