《论衡·卷三·物势篇》
翻土，除草，播种，是有意识这样做的，至于庄稼成熟不成熟，则是偶然由自然决定的。
夫耕耘播种，故为之也；及其成与不熟，偶自然也。
Plough the land, weed and sow are all done consciously, but if the seeds mature or not, it is accidentally determined by nature.
<s>[INST] Identify the key themes in this Classical Chinese text and explain them in English: 夫耕耘播种，故为之也；及其成与不熟，偶自然也。 [/INST] Plough the land, weed and sow are all done consciously, but if the seeds mature or not, it is accidentally determined by nature.</s>
Identify the key themes in this Classical Chinese text and explain them in English: 夫耕耘播种，故为之也；及其成与不熟，偶自然也。
user
Plough the land, weed and sow are all done consciously, but if the seeds mature or not, it is accidentally determined by nature.
assistant