When there's no experimenting there's no progress. Stop experimenting and you go backward. If anything goes wrong, experiment until you get to the very bottom of the trouble.

Surprises and reverses can serve as an incentive for great accomplishment. There are no rules here, we're just trying to accomplish something.

Most of the exercise I get is from standing and walking around laboratory tables all day. I derive more benefit and entertainment from this than some of my friends and competitors get from playing games like golf.

Incurably religious, that is the best way to describe the mental condition of so many people.

I am proud of the fact that I never invented weapons to kill.

Keep on the lookout for novel ideas that others have used successfully. Your idea has to be original only in its adaptation to the problem you're working on.

When I have fully decided that a result is worth getting I go ahead of it and make trial after trial until it comes.