《三国志·吴书·张顾诸葛步传》
张昭不愿他就任，说： 你年纪还小，为什么要委身于军旅之事呢？ 
昭不愿曰： 汝年尚少，何为自委於军旅乎？ 
Zhang Zhao didn't want him to take the office, and said: you are still young, why do you want to devote your life to military affairs?
<s>[INST] Kindly elucidate the central themes in this passage in English: 昭不愿曰： 汝年尚少，何为自委於军旅乎？  [/INST] Zhang Zhao didn't want him to take the office, and said: you are still young, why do you want to devote your life to military affairs?</s>
Kindly elucidate the central themes in this passage in English: 昭不愿曰： 汝年尚少，何为自委於军旅乎？
user
Zhang Zhao didn't want him to take the office, and said: you are still young, why do you want to devote your life to military affairs?
assistant