《资治通鉴·汉纪·汉纪三十八》
李邑到达于阗时，正值龟兹进攻疏勒，他因恐惧而不敢前进，便上书声称西域的功业不可能成功，还大肆诋毁班超，说班超： 拥爱妻，抱爱子，在外国享安乐，没有思念中原之心。 
邑到于窴，值龟兹攻疏勒，恐惧不敢前，因上书陈西域之功不可成，又盛毁超： 拥爱妻，抱爱子，安乐外国，无内顾心。 
When Li Yi arrived in Yutian, he found out that Kucha was attacking Shule. Out of fear, he didn't dare to go forward and wrote to the emperor, saying that it would be impossible to complete the mission in the Western Regions. He also made malicious accusations against Ban Chao, saying, "Ban Chao brought his beloved wife and son with him, and he is enjoying himself in foreign countries. He has no thoughts of returning to his homeland."
<s>[INST] Identify the key themes in this Classical Chinese text and explain them in English: 邑到于窴，值龟兹攻疏勒，恐惧不敢前，因上书陈西域之功不可成，又盛毁超： 拥爱妻，抱爱子，安乐外国，无内顾心。  [/INST] When Li Yi arrived in Yutian, he found out that Kucha was attacking Shule. Out of fear, he didn't dare to go forward and wrote to the emperor, saying that it would be impossible to complete the mission in the Western Regions. He also made malicious accusations against Ban Chao, saying, "Ban Chao brought his beloved wife and son with him, and he is enjoying himself in foreign countries. He has no thoughts of returning to his homeland."</s>
Identify the key themes in this Classical Chinese text and explain them in English: 邑到于窴，值龟兹攻疏勒，恐惧不敢前，因上书陈西域之功不可成，又盛毁超： 拥爱妻，抱爱子，安乐外国，无内顾心。
user
When Li Yi arrived in Yutian, he found out that Kucha was attacking Shule. Out of fear, he didn't dare to go forward and wrote to the emperor, saying that it would be impossible to complete the mission in the Western Regions. He also made malicious accusations against Ban Chao, saying, "Ban Chao brought his beloved wife and son with him, and he is enjoying himself in foreign countries. He has no thoughts of returning to his homeland."
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