Daodejing, Book of the Way and Virtue Chapter 43

天下之至柔，馳騁天下之至堅。 無有入無間，吾是以知無為之有益。 不言之教，無為之益，天下希及之。

The softest thing in the world dashes against and overcomes the hardest; that which has no (substantial) existence enters where there is no crevice. I know hereby what advantage belongs to doing nothing (with a purpose). There are few in the world who attain to the teaching without words, and the advantage arising from non-action.

Les choses les plus molles du monde subjuguent les choses les plus dures du monde. Le non-être traverse les choses impénétrables. C’est par là que je sais que le non-agir est utile. Dans l’univers, il y a bien peu d’hommes qui sachent instruire sans parler et tirer profit du non-agir.