The hardest challenges often lead to the greatest breakthroughs.
The best way to get started is to quit talking and begin doing.
我不知道我是否相信上帝,但我相信人们创造神的力量。
化学的乐趣在于看到不可见的东西变得可见。
There are a lot of things that go into creating success. I don't like to do just the things I like to do. I like to do things that cause the company to succeed.
The great tragedy of Science—the slaying of a beautiful hypothesis by an ugly fact.  
人们并不愚蠢。他们知道如何从观察到的事物中推断出结论。