“Of course, you only live one life, and you make all your mistakes, and learn what not to do, and that’s the end of you.”

Scientific knowledge is a body of statements of varying degrees of certainty – some most unsure, some nearly sure, none absolutely certain.

I would rather have questions that can’t be answered than answers that can’t be questioned.

That was a very good way to get educated, working on the senior problems and learning how to pronounce things.

If I could explain it to the average person, I wouldn’t have been worth the Nobel Prize.

Mathematics is a language plus reasoning; it is like a language plus logic. Mathematics is a tool for reasoning.

I was an ordinary person who studied hard. There are no miracle people. It happens they get interested in this thing and they learn all this stuff, but they’re just people.

Physics is to math what sex is to masturbation.

How much do you value life? Sixty-four.

The game I play is a very interesting one. It’s imagination, in a tight straightjacket.

All mass is interaction.

Thank you very Much, I enjoyed myself.

I’m smart enough to know that I’m dumb.

Science is the belief in the ignorance of experts.

Words can be meaningless. If they are used in such a way that no sharp conclusions can be drawn.

Tell your son to stop trying to fill your head with science — for to fill your heart with love is enough.

I can live with doubt and uncertainty and not knowing. I think it’s much more interesting to live not knowing than to have answers that might be wrong.

I can remember being eight years old and having infinite possibilities. But life ends up being so much less that we thought it would be when we were kids, with relationships that are so empty and stupid and brutal.

What is beyond the mind, has no boundary, In it our senses end.

When you end up happily married, even the failed relationships have worked beautifully to get you there.

The fact that knowledge endlessly recedes as the investigator is about to grasp it is what constitutes at the same time his torment and happiness.

You had to use it to fight apartheid & some of us resisted that in the end, you recognize that you are facing a government that has no scruples about using culture & art to oppress you.

I will stay in jail to the end of my days before I make a butchery of my conscience.

Belief begins where science leaves off and ends where science begins.

Speech is not a means in the service of an external end. It contains its own rule of usage, ethics, and view of the world, as a gesture sometimes bears the whole truth about a man.