In a section of Huainanzi named Fan Lun Xun, he wrote: Our ancestors lived on riverbanks and in mountain caves, wore rough and simple clothing and lived a harsh existence.
2.《淮南子》中有一篇《泛論訓》中講到：我們的祖先原先住在水邊和山洞裡，衣著簡陋，生活十分艱苦。