《论衡·卷二·无形篇》
现在说他们寿命增加了，却不说他们形体是否改变，这不能相信。为什么呢？
今言年增，不言其体变，未可信也。
Now, it is said that their lives were extended but it is not said whether they changed their physical form; this cannot be believed. Why not?
<s>[INST] Take each pair of old and new sentences and unite them into a single translation that captures the core meaning: Archaic: 今言年增，不言其体变，未可信也。 Updated: 现在说他们寿命增加了，却不说他们形体是否改变，这不能相信。为什么呢？ [/INST] Now, it is said that their lives were extended but it is not said whether they changed their physical form; this cannot be believed. Why not?</s>
Take each pair of old and new sentences and unite them into a single translation that captures the core meaning: Archaic: 今言年增，不言其体变，未可信也。 Updated: 现在说他们寿命增加了，却不说他们形体是否改变，这不能相信。为什么呢？
user
Now, it is said that their lives were extended but it is not said whether they changed their physical form; this cannot be believed. Why not?
assistant