Knowledge and Experience - Quotes

The only source of knowledge is experience.
Albert Einstein

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.
Richard Feynman

No amount of experimentation can ever prove me right; a single experiment can prove me wrong.
Albert Einstein

For a successful technology, reality must take precedence over public relations, for Nature cannot be fooled.
Richard Feynman

As far as the laws of mathematics refer to reality, they are not certain, and as far as they are certain, they do not refer to reality.
Albert Einstein