《宋史·列传·卷一百七十六》
本来是想选择精锐之师，恰好得到愚钝之兵；本来是想显示其兵众力强，恰好给人以兵少力弱的感觉，反而示敌方以可乘之机。 许国不听，最后大败。
本欲选锐，适得其钝，本欲示众，适示单弱，徒启戎心。 国不听，卒败。
He originally wanted to select elite troops, but he ended up getting sluggish ones; he originally wanted to show off his strong and powerful troops, but he ended up giving people the impression that he had few and weak troops, and instead showed the enemy a chance to exploit. Xu Guo did not listen, and was eventually defeated badly.
<s>[INST] Identify the tone and emotion conveyed in the Classical Chinese text and explain how it is achieved in English: 必知所欲言，言之所欲。 [/INST] Tone and emotion: [...], Explanation in English: [...].</s>
Identify the tone and emotion conveyed in the Classical Chinese text and explain how it is achieved in English: 必知所欲言，言之所欲。
user
Tone and emotion: [...], Explanation in English: [...].
assistant