What is not surrounded by uncertainty cannot be the truth.

My rule is, when you are unhappy, think about it. But when you're happy, don't. Why spoil it? You're probably happy for some ridiculous reason and you'd just spoil it to know it.

I love only nature, and I hate mathematicians.

Science is of value because it can produce something.

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.

Work as hard and as much as you want to on the things you like to do the best.

Scientific knowledge is an enabling power to do either good or bad — but it does not carry instructions on how to use it.