《太平广记·卷十二·神仙十二》
蓟子训活到三百多岁仍不显老，人们十分奇怪，就有些好事的人追随在他周围，想探到一些长寿的奥秘，但是并没发现他服用什么长寿药物。
如此三百余年，颜色不老，人怪之。好事者追随之，不见其所常服药物也。
Ji Zi Xun lived to over 300 years old without showing his age. People were very curious, and some nosy people followed him around, wanting to discover some secrets of longevity, but they did not find him taking any longevity medicines. 
<s>[INST] Identify the key themes in this Classical Chinese text and explain them in English: 如此三百余年，颜色不老，人怪之。好事者追随之，不见其所常服药物也。 [/INST] Ji Zi Xun lived to over 300 years old without showing his age. People were very curious, and some nosy people followed him around, wanting to discover some secrets of longevity, but they did not find him taking any longevity medicines. </s>
Identify the key themes in this Classical Chinese text and explain them in English: 如此三百余年，颜色不老，人怪之。好事者追随之，不见其所常服药物也。
user
Ji Zi Xun lived to over 300 years old without showing his age. People were very curious, and some nosy people followed him around, wanting to discover some secrets of longevity, but they did not find him taking any longevity medicines.
assistant