《新唐书·列传·卷四十五》
有逆臣而不诛杀，社稷必亡。
逆而不诛，社稷惧亡。
If one has disloyal courtiers but does not have them executed, the state is certain to perish.
<s>[INST] Convert the following modern Chinese text into Classical Chinese: 有逆臣而不诛杀，社稷必亡。 [/INST] 逆而不诛，社稷惧亡。</s>
Convert the following modern Chinese text into Classical Chinese: 有逆臣而不诛杀，社稷必亡。
user
逆而不诛，社稷惧亡。
assistant