《魏书·列传·卷七十》
李琰之经常说： 崔博而不精，刘精而不博，我既精且博，学识包括二人之长。 
每云： 崔博而不精，刘精而不博；我既精且博，学兼二子。 
Li Yan'zhi often said: "Cui is extensive but not refined, Liu is refined but not extensive. I am both refined and extensive, and my knowledge encompasses the strengths of both."