You can always recognize truth by its beauty and simplicity.

We've learned from experience that the truth will out.

It is necessary for the very existence of science that minds exist which do not allow that nature must satisfy some preconceived conditions.

I was born not knowing and have had only a little time to change that here and there.

All the time you're saying to yourself, 'I could do that, but I won't,'--which is just another way of saying that you can't.

The real problem in speech is not precise language. The problem is clear language.

Another of the qualities of science is that it teaches the value of rational thought, as well as the importance of freedom of thought; the positive results that come from doubting that all the lessons are true... Learn from science that you must doubt the experts. As a matter of fact, I can also define science another way: Science is the belief in the ignorance of experts.