《资治通鉴·唐纪·唐纪十七》
我看房玄龄、杜如晦平生勤苦，才能树立门户，但被不肖子孙把家业败尽。
我见房、杜平生勤苦，仅能立门户，遭不肖子，荡覆无馀。
I think that Fang Xuanling and Du Ruhui had been diligent and frugal all their lives, in order to establish their family business, but their unworthy descendants ruined their family business.