The Daoist text Baopuzi warns: "The mouth says yes, the heart says no. The face turns one way, the words go another."
The phrase "口是心非" (mouth yes, heart no) became the Chinese idiom for hypocrisy — saying one thing while meaning another. It describes the politician who promises reform while planning corruption, the friend who smiles while plotting betrayal, the lover who says "forever" while thinking "for now."
口是心非，背向异辞。
口是心非，背向异辞。
Reflection & Analysis · 寓意解读
Core Wisdom
Words are easy. Sincerity is hard. The one whose mouth and heart are aligned is worth a thousand who speak beautifully.
This idiom is one of the oldest Chinese warnings against hypocrisy. The Baopuzi — a Daoist text on alchemy and self-cultivation — places it in the context of spiritual practice: the Daoist who performs rituals without inner conviction is practicing "mouth yes, heart no."
The phrase has broader applications: in politics, in relationships, in business. The gap between what people say and what they mean is the source of most human conflict. Closing that gap — aligning mouth and heart — is the foundation of integrity.