《旧唐书·列传·卷八十五》
他常在回答太子问话时，就说： 某人可任宰相，某人可任将军，希望今后任用他们。 
每对太子言，则曰： 某可为相，某可为将，幸异日用之。 
He often said this when answering the crown prince's questions: a certain person can be appointed as a prime minister, a certain person can be appointed as a general, and hoped to employ them in the future.