《史记·七十列传·蒙恬列传》
这时丞相李斯、公子胡亥、中车府令赵高，经常侍奉在秦始皇左右。
是时丞相李斯、公子胡亥、中车府令赵高常从。
At this time, the Chancellor Li Si, the Prince Hu Hai, and the Director of the Palace Carriages, Zhao Gao, were often in attendance upon the First Emperor.