A man’s clarity of judgment is never very good when you’re involved, and as you grow older, and as you grow more involved, your clarity of judgement suffers .

I’m looking for a market for wisdom.

Don’t lie if you don’t have to.

In life you must often choose between getting a job done or getting credit for it. In science, the most important thing is not the ideas you have but the decision which ones you choose to pursue. If you have an idea and are not doing anything with it, why spoil someone else’s fun by publishing it?

If you want to succeed in the world, you don’t have to be much cleverer than other people. You just have to be one day earlier.

A scientist’s aim in a discussion with his colleagues is not to persuade, but to clarify.

I’m all in favor of the democratic principle that one idiot is as good as one genius, but I draw the line when someone takes the next step and concludes that two idiots are better than one genius.

I have been asked whether I would agree that the tragedy of the scientist is that he is able to bring about great advances in our knowledge, which mankind may then proceed to use for purposes of destruction. My answer is that this is not the tragedy of the scientist; it is the tragedy of mankind.

You may assume infinite ignorance and unlimited intelligence.

Do not destroy what you cannot create.