生命与死亡之间的界限，充其量不过是模糊的阴影。谁能说清它们的交界在哪里？
The boundaries which divide Life from Death are at best shadowy and vague. Who shall say where the one ends， and the other begins？
相对论不仅仅是一个科学理论，而且是一个哲学理论。
I don’t care what people think of me. I care what I think of myself.
当你有一个梦想时，你必须抓住它，永远不要放手。
The most important thing a woman can do for her children is to love their father.
Innovation is not just about creating something new, but about making what exists better.
