《晋书·列传·第十五章》
司马亮问原因，回答： 想到握玉不能快走的缘故。 
亮问其故，对曰： 虑有执玉不趋之义故尔 。
Sima Liang asked the reason, and he replied: I thought about the reason why it was impossible to walk fast while holding a jade.
<s>[INST] Identify the key themes in this Classical Chinese text and explain them in English: 亮问其故，对曰： 虑有执玉不趋之义故尔 。 [/INST] Sima Liang asked the reason, and he replied: I thought about the reason why it was impossible to walk fast while holding a jade.</s>
Identify the key themes in this Classical Chinese text and explain them in English: 亮问其故，对曰： 虑有执玉不趋之义故尔 。
user
Sima Liang asked the reason, and he replied: I thought about the reason why it was impossible to walk fast while holding a jade.
assistant