过去是幽灵，未来是梦，现在只是转瞬即逝的瞬间。

要求不高,只求最好。

"Take calculated risks. That is quite different from being rash."

改变始于一小步，但需要集体的努力才能持久。

统一自然界所有力的挑战是几十年来推动理论物理学发展的动力之一。

I think that's the single best piece of advice: constantly think about how you could be doing things better and questioning yourself.