《资治通鉴·隋纪·隋纪四》
但是文帝好猜忌苛察，容易听信谗言，他的功臣故旧，没有能始终保全的；至于他的子弟辈，都象仇敌一样，这是他的短处。
然猜忌苛察，信受谗言，功臣故旧，无始终保全者；乃至子弟，皆如仇敌，此其所短也。
But Emperor Wen liked to speculate and blame, and would easily believe slander; none of his loyal subjects and old friends could stay safe; and it was his weakness that he treated his children like enemies.