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

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It is to be emphasized that no matter how many [amplitude] arrows we draw, add, or multiply, our objective is to calculate a single final arrow for the event . Mistakes are often made by physics students at first because they do not keep this important point in mind. They work for so long analyzing events involving a single photon that they begin to think that the arrow is somehow associated with the photon [rather than with the event].

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