At the end of the day it's not about what you have or even what you've accomplished... it's about who you've lifted up, who you've made better. It's about what you've given back.

The absence of alternatives clears the mind marvelously.

没有执行的创新只是空想。

The world is so full of a number of things, I'm sure we should all be as happy as kings.

释义：不考虑在安逸的环境中要想到危难，用节俭来戒除奢侈，不使自己的道德处于深厚的境界，不能使自己的情欲战胜物质欲望，这就像砍伐树木的根却想要树木长得茂盛，堵塞水的源头却想要水流得长远一样荒谬。 

发现的旅程充满了不确定性，但正是这些不确定性使科学如此令人兴奋。