You think when you wake up in the mornin yesterday don't count. But yesterday is all that does count. What else is there? Your life is made out of the days it's made out of. Nothin else.

"Life is what happens when you're busy making other plans."

I'm not perfect, but I'm trying my best.

问题陈述得好，问题就解决了一半。

唯一能让你成功的是你的热情。

理论的任务不仅是了解自然是什么以及它是如何运作的，而且要尽可能接近理解为什么自然是这样的而不是其他样子的不可达到的目标。

我经历了很多，但我依然屹立不倒。