《宋书·志·卷十八》
车轮转动运行可以载重，便又制造可以坐人的车舆。
任重致远，流运无极。
The wheel can carry heavy objects, so a carriage for people to sit in was invented.
<s>[INST] Kindly elucidate the central themes in this passage in English: 任重致远，流运无极。 [/INST] The wheel can carry heavy objects, so a carriage for people to sit in was invented.</s>
Kindly elucidate the central themes in this passage in English: 任重致远，流运无极。
user
The wheel can carry heavy objects, so a carriage for people to sit in was invented.
assistant