《韩非子·难四》
那么成汤、武王之所以称王天下，田氏和三晋中的赵氏之所以立国，原因不一定在他们原来的君主身上，而是成汤他们得到民众拥护以后才当上君主的。
则汤、武之所以王，齐晋之所以立，非必以其君也，彼得之而后以君处之也。
Therefore, the reason Cheng Tang and King Wu became kings of the world, and the reason Tian and Zhao of San Jin established states, was not necessarily due to their original rulers, but because Cheng Tang and others became rulers after they gained the support of the people.