Science is not just about answering questions, but also about discovering new questions to ask.

选自汉·桓宽《盐铁论·散不足》。这句话以积土成山、列树成林为喻，说明积少成多、打好基础的重要性。

解析：良知即是天理。

解释：饿了再吃，粗茶淡饭味道也像吃肉一样可口。安稳走路就不会感觉到劳累，权当坐车。