《魏书·列传·卷二十三》
所以楚之去他就来，楚之不动他也息兵，这是必然之势。
故楚之往则彼来，止则彼息，其势然也。
Therefore, only when Chu attacks, will he come to fight, when Chu doesn’t attack, he won’t fight either, this is an inevitable trend.
<s>[INST] Translate the following Classical Chinese text into English: 故楚之往则彼来，止则彼息，其势然也。 [/INST] Therefore, only when Chu attacks, will he come to fight, when Chu doesn’t attack, he won’t fight either, this is an inevitable trend.</s>
Translate the following Classical Chinese text into English: 故楚之往则彼来，止则彼息，其势然也。
user
Therefore, only when Chu attacks, will he come to fight, when Chu doesn’t attack, he won’t fight either, this is an inevitable trend.
assistant