Inspirational Quotes, Motivational Sayings, and Wise Words for Daily Inspiration

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Everybody who reasons carefully about anything is making a contribution ... and if you abstract it away and send it to the Department of Mathematics they put it in books.

Richard P. Feynman's Popular Quotes

We never are definitely right, we can only be sure we are wrong.

- Richard P. Feynman

The first principle is that you must not fool yourself and you are the easiest person to fool.

- Richard P. Feynman

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

- Richard P. Feynman

You can always recognize truth by its beauty and simplicity.

- Richard P. Feynman

Don't pay attention to "authorities," think for yourself.

- Richard P. Feynman

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 P. Feynman

If you can't explain something to a first year student, then you haven't really understood .

- Richard P. Feynman

Religion is a culture of faith; science is a culture of doubt.

- Richard P. Feynman

We need to teach how doubt is not to be feared but welcomed. It's OK to say, "I don't know."

- Richard P. Feynman