《史记·七十列传·儒林列传》
于是景帝说： 吃肉不吃马肝，不算不知肉的美味；谈学问的人不谈汤、武是否受天命继位，不算愚笨。 
於是景帝曰： 食肉不食马肝，不为不知味；言学者无言汤武受命，不为愚。 
Jingdi then said: If you eat meat and do not eat horse liver, it does not mean you do not know how delicious meat is; if a scholar does not argue over whether Emperor Tang or Emperor Wu inherited the throne through the Mandate of Heaven, it does not mean the scholar is foolish.