Fish swim in water but do not think about
water. Birds fly in the wind but do not know
about wind. Realizing this enables us to
rise above the burden of things and to take
delight in the ways of nature.

Vegetable Roots Discourse: Wisdom from Ming China on Life and Living - Caicentan by Hong Zicheng (Shoemaker & Hoard, 2006), Translated by Robert Aitken with Daniel W. Y. Kwok, p. 131