《旧唐书·列传·卷一百三十七》
母亲去世，他便不再做官。
母卒，遂不复仕进。
When his mother died, he stopped being an official.
<s>[INST] Identify the key themes in this Classical Chinese text and explain them in English: 母卒，遂不复仕进。 [/INST] When his mother died, he stopped being an official.</s>
Identify the key themes in this Classical Chinese text and explain them in English: 母卒，遂不复仕进。
user
When his mother died, he stopped being an official.
assistant