《史记·七十列传·酷吏列传》
这时，汉武帝正心向儒家学说，张汤判决大案，就想附会儒家观点，因此就请博士弟子们研究《尚书》《春秋》，他担任廷尉史，就请他们评判法律的可疑之处。
是时上方乡文学，汤决大狱，欲傅古义，乃请博士弟子治尚书、春秋补廷尉史，亭疑法。
At this time, Emperor Wu of Han was focusing on Confucianism. When Zhang Tang judged major cases, he wanted to conform to Confucian views. Therefore, he asked doctoral students to study the "Book of Documents" and the "Spring and Autumn Annals". As the Tingwei Shi, he asked them to evaluate the suspicious points of the law.