《新唐书·列传·卷八十二》
凡是用以判断是非、制定法令制度的标准，就要考虑礼义；检验虚实、衡量轻重，就要想到权力，如果专一讲实利但不用虚名辅助，那财物就不够消耗；如果专一讲虚名但与实利不相符，那就会心情散漫而没有追求。
凡所以裁是非，立法制，则存乎其义；参虚实，揣轻重，则存乎其权。专实利而不济之以虚，则物有匮耗而不给矣；专虚名而不副之以实，则情有诞谩而不趋矣。
Any standard used to judge right or wrong and enact laws and systems must consider rites and righteousness; to inspect the true from the false, and weigh the heavy from the light, one must think of power. If one only focuses on material gain but does not use false prestige as an auxiliary, then wealth and goods will be insufficient to consume; if one only focuses on false prestige but does not match it with material gain, then one's disposition will be scattered and there will be nothing to strive for.