Doubt as a Scientific Virtue

I would now like to turn to a third value that science has. It is a little more indirect, but not much. The scientist has a lot of experience with ignorance and doubt and uncertainty, and this experience is of very great importance, I think. When a scientist doesn't now the answer to a problem, he is ignorant. When he as a hunch as to what the result is, he is uncertain. And when he is pretty darn sure of what the result is going to be, he is in some doubt. We have found it of paramount importance that in order to progress we must recognize the ignorance and leave room for doubt. Scientific knowledge is a body of statements of varying degrees of certainty--some most unsure, some nearly sure, none absolutely certain.

Notes:

The importance of doubt, and a lack of absolute certainty, in science, which is non-authoritarian.

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 The Value of Science from What Do You Care What Other People Think?: Further Adventures of a Curious Character
Books, Brochures, and Chapters>Book Chapter:  Feynman, Richard (1988), The Value of Science from What Do You Care What Other People Think?: Further Adventures of a Curious Character, W.W. Norton and Company, Retrieved on 2010-11-13