《晋书·志·第十三章》
唐尧虞舜至治，仍有四凶滔天。
唐虞至治，四凶滔天。
<ins>10. Even in the era of Yao and Shun, there were still the Four Fiends who caused havoc.</ins>
<s>[INST] Kindly elucidate the central themes in this passage in English: 唐虞至治，四凶滔天。 [/INST] <ins>10. Even in the era of Yao and Shun, there were still the Four Fiends who caused havoc.</ins></s>
Kindly elucidate the central themes in this passage in English: 唐虞至治，四凶滔天。
user
<ins>10. Even in the era of Yao and Shun, there were still the Four Fiends who caused havoc.</ins>
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