《旧唐书·列传·卷一百二十二》
用兵打仗实在应当极其慎重！ 
固宜深慎！ 
You should be very cautious when going to war! 
<s>[INST] Translate the following Classical Chinese text into English: 固宜深慎！  [/INST] You should be very cautious when going to war! </s>
Translate the following Classical Chinese text into English: 固宜深慎！
user
You should be very cautious when going to war!
assistant