《太平广记·卷二·神仙二》
彭祖有车有马但很少乘用，出门时常常不带路费和口粮，一走就是几十天甚至几百天，但回来时仍和平常一样非常健康。
有车马而常不乘，或数百日，或数十日，不持资粮，还家则衣食与人无异。
Pengzu had a carriage and horse but seldom used them. When he went out, he often did not take money or food with him, and stayed away for tens of days or even hundreds of days, but when he returned, he was always as healthy as usual.
<s>[INST] Kindly elucidate the central themes in this passage in English: 有车马而常不乘，或数百日，或数十日，不持资粮，还家则衣食与人无异。 [/INST] Pengzu had a carriage and horse but seldom used them. When he went out, he often did not take money or food with him, and stayed away for tens of days or even hundreds of days, but when he returned, he was always as healthy as usual.</s>
Kindly elucidate the central themes in this passage in English: 有车马而常不乘，或数百日，或数十日，不持资粮，还家则衣食与人无异。
user
Pengzu had a carriage and horse but seldom used them. When he went out, he often did not take money or food with him, and stayed away for tens of days or even hundreds of days, but when he returned, he was always as healthy as usual.
assistant