《旧唐书·列传·卷一百一十六》
胡亥生前，《诗》、《书》不得习读，圣贤不亲近。
胡亥之生也，《诗》、《书》不得闻，圣贤不得近。
Before Hu Hai was alive, he was not able to read the “Book of Poetry” or the “Book of Documents,” and he did not come into contact with the sages.