《尚书·商书·太甲下》
有些话不顺你的心意，一定要从道义来考求；有些话顺从你的心意，一定要从不道义来考求。啊！
有言逆于汝心，必求诸道；有言逊于汝志，必求诸非道。
When you hear words that do not suit your taste, you must examine them from the perspective of morality; when you hear words that suit your taste, you must examine them from the perspective of what is immoral. Ah!