《魏书·列传·卷四十五》
史官之作，文质不同；立书意旨，随着不同的时代都有差异。
史官之体，文质不同；立书之旨，随时有异。
The works of historians are different in terms of literary style and quality, and the intentions behind writing history vary with the different ages.
<s>[INST] Identify the key themes in this Classical Chinese text and explain them in English: 史官之体，文质不同；立书之旨，随时有异。 [/INST] The works of historians are different in terms of literary style and quality, and the intentions behind writing history vary with the different ages.</s>
Identify the key themes in this Classical Chinese text and explain them in English: 史官之体，文质不同；立书之旨，随时有异。
user
The works of historians are different in terms of literary style and quality, and the intentions behind writing history vary with the different ages.
assistant