As you know, a theory in physics is not useful unless it is able to predict underlined effects which we would otherwise expect.
Richard P. FeynmanScience is a way to teach how something gets to be known, what is not known, to what extent things are known (for nothing is known absolutely), how to handle doubt and uncertainty, what the rules of evidence are, how to think about things so that judgments can be made, how to distinguish truth from fraud, and from show.
Richard P. FeynmanIt is scientific only to say what is more likely and what less likely, and not to be proving all the time the possible and impossible.
Richard P. FeynmanOur imagination is stretched to the utmost, not, as in fiction, to imagine things which are not really there, but just to comprehend those things which are there.
Richard P. Feynman