《资治通鉴·汉纪·汉纪六》
天下的命运，决定于太子一人，要使太子成为好的继承人，在于及早进行教育和选择贤人做太子的左右亲随。
天下之命，县于太子，太子之善，在于早谕教与选左右。
The fate of the world is determined by a single Crown Prince and to make Crown Prince a good successor lies in educating and selecting morally upright people to be the Crown Prince's close aides as early as possible. 