恐惧是最大的残疾。它比坐在轮椅上更能让你瘫痪。

The real voyage of discovery consists not in seeking new landscapes, but in having new eyes.

If ease of use was the only requirement, everyone would still be riding tricycles.

解释：冬天不洗冰水，并不是吝惜冰；夏天不烤火，也不是舍不得火。而是因为这样做对身体不适宜。