《明史·列传·卷十八》
太祖命右相国李善长写信招降，但没有回音。
太祖使右相国李善长以书招之，不报。
The founding emperor ordered the Right Prime Minister Li Shanchang to write a letter of surrender, but there was no response.
<s>[INST] Kindly elucidate the central themes in this passage in English: 太祖使右相国李善长以书招之，不报。 [/INST] The founding emperor ordered the Right Prime Minister Li Shanchang to write a letter of surrender, but there was no response.</s>
Kindly elucidate the central themes in this passage in English: 太祖使右相国李善长以书招之，不报。
user
The founding emperor ordered the Right Prime Minister Li Shanchang to write a letter of surrender, but there was no response.
assistant