《周书·列传·卷二十六》
于是对长孙稚说： 承闻世子资质聪慧，出于天性，眼中所见到的，就能在口中背诵出来。
遂白稚曰： 伏承世子聪慧之姿，发于天性，目所一见，诵之于口。
So he said to Changsun Zhi: I have heard that the son is very intelligent and has a natural talent, he can recite everything he has seen from his eyes.