Richard Feynman

I don't think I'm a very good teacher. I just try to explain things clearly.

You can know the name of a bird in all the languages of the world, but when you're finished, you'll know absolutely nothing whatever about the bird... So let's look at the bird and see what it's doing — that's what counts.

The fact that I can even ask the question, 'What is the mind?' means that the mind is a part of the universe.

I'm not a humanitarian. I'm a scientist.

The age of ignorance is past. The age of reason is here. And it will be a glorious age, if we but choose to make it so.

I don't have to be polite when I'm doing science.

I don't like to be told what to do.

I just can't stand people who are so sure of themselves.

I'm not a deep thinker. I'm a practical thinker.

I don't have to follow rules. I just have to find out what's true.

I have a lot of fun. I've always had a lot of fun. I don't know why I should stop.

The only way to do something is to do it. Not to talk about it, not to plan it, but to do it.

I don't know anything, but I know that I know nothing. And that's the beginning of wisdom.

I'm not interested in being a guru. I'm interested in understanding the world.

There is no such thing as a miracle. There is only what we don't understand yet.

I don't think there's any such thing as a 'best' way to do anything. There's just what works.

I'm not a genius. I'm just intensely curious.

You have no responsibility to live up to what other people think you ought to accomplish. I have no responsibility to be like what they expect me to be. It's their mistake, not my failing.

I don't understand anything in biology. I don't understand anything in chemistry. I don't understand anything in mathematics. I don't understand anything in physics. I don't understand anything in anything. But I understand how to learn.

The world is a stage, but the play is badly cast.