if you can’t prove something wrong, you can’t really prove it right either.

When the fact doesn't meet the theory then let go the theory.

If the fact will not fit the theory - let the theory go

So try to be wrong.
Try to disprove your beliefs.
Never believe something on faith.
Prove it or disprove it.
While other people have one idea that they think might work, you will have thousands you can prove didn’t work, and one you couldn’t make fail.

It doesn't matter how beautiful your theory is, it doesn't matter how smart you are. If it doesn't agree with experiment, it's wrong.

A theory should not attempt to explain all the facts, because some of the facts are wrong.

When somebody persuades me I am wrong, I change my mind.

Whenever a theory appears to you as the only possible one, take this as a sign that you have neither understood the theory nor the problem which it was intended to solve.

When my information changes, I alter my conclusions. What do you do, sir?

When the facts change, I change my mind. What do you do?

What evidence would change your mind?” If the answer is “nothing,” then there’s no point in continuing the debate. You can lead a horse to water, but you can’t make it think.

Why do you keep maintaining your ideas are right if you can't prove them?

If you're teaching, say, physics, there's no point in persuading a student that you're right. You want to encourage them to find out what the truth is, which is probably that you're wrong.

If I do not believe as you believe, it proves that you do not believe as I believe, and that is all that it proves.