《新唐书·列传·卷一百四十八》
张镒才能平平，为人迂缓，是皇帝倚重亲近的人，没有机会排挤他。
张镒材裕忠懿，帝所倚爱，未有以间。
Zhang Yi's ability is mediocre, and he is slow-witted. He is someone the emperor relies on and is close to, so there is no chance to exclude him.