《论衡·卷十八·齐世篇》
世人经常把桀、纣与尧、舜看成是相反的人物，称美谁就以尧、舜为例，贬斥谁就举桀、纣为例。
世常以桀、纣与尧、舜相反，称美则说尧、舜，言恶则举纣、桀。
The world often sees Jie and Zhou as opposites of Yao and Shun, citing Yao and Shun as examples of praise and Jie and Zhou as examples of denunciation.
<s>[INST] Kindly elucidate the central themes in this passage in English: 世常以桀、纣与尧、舜相反，称美则说尧、舜，言恶则举纣、桀。 [/INST] The world often sees Jie and Zhou as opposites of Yao and Shun, citing Yao and Shun as examples of praise and Jie and Zhou as examples of denunciation.</s>
Kindly elucidate the central themes in this passage in English: 世常以桀、纣与尧、舜相反，称美则说尧、舜，言恶则举纣、桀。
user
The world often sees Jie and Zhou as opposites of Yao and Shun, citing Yao and Shun as examples of praise and Jie and Zhou as examples of denunciation.
assistant