《新唐书·列传·卷三十二》
用道德感化凶恶，势必互不相容；用正直改造奸佞，势必都无效果；用廉洁劝说贪婪，势必互不买账；用诚实接交虚伪，势必互不和谐。
以德并凶，势不相入；以正攻佞，势不相利；以廉劝贪，势不相售；以信质伪，势不相和。
Using morality to influence the wicked will inevitably make them incompatible with each other; using integrity to reform the treacherous will inevitably have no effect; using integrity to persuade the greedy will inevitably make them not buy each other; using honesty to connect with hypocrisy will inevitably make them disharmonious.