The mouth is the portal of the mind. If not
carefully guarded, it leaks true intents and
motives. Feelings are the feet of the mind.
If not carefully watched, they will take you
onto all kinds of wayward paths.
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. 101