《旧唐书·列传·卷八十七》
他的构思风格像高山陡崖，千丈耸立，当时文人追随效法他，没有能近似的。
其文思体势，如崇岩峭壁，万仞崛起，当时文士从而效之，无能仿佛者。
His thinking was like steep cliffs in high mountains, rising thousands of miles high. Literati of that time tried to follow and imitate him, but none could be his equal.