《汉书·传·货殖传》
白圭能做到不讲究吃喝，克制嗜好欲望，节省穿戴，与管事的家僮奴仆同甘共苦，捕捉发财时机就像猛兽凶禽搏取食物那样迅速敏捷。
能薄饮食，忍嗜欲，节衣服，与用事僮仆同苦乐，趋时若猛兽挚鸟之发。
Bai Gui was able to make do without fine food and drink, restrained his desires for pleasures, saved on clothing and footwear, suffered hardships with the servants and slaves who managed his affairs, and seized opportunities for making money as quickly and nimbly as fierce beasts and birds of prey pounce on food.