"The third aspect of my subject is that of science as a method of finding things out. This method is based on the principle that observation is the judge of whether something is so or not. All other aspects and characteristics of science can be understood directly when we understand that observation is the ultimate and final judge of the truth of an idea. But "prove" used in this way really means "test," in the same way that a hundred-proof alcohol is a test of the alcohol, and for people today the idea really should be translated as, "The exception tests the rule." Or, put another way, "The exception proves that the rule is wrong." That is the principle of science. If there is an exception to any rule, and if it can be proved by observation, that rule is wrong."
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Academics from the United StatesNon-fiction authors from the United StatesNobel laureates in PhysicsNobel laureates from the United StatesPhysicists from the United States
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lecture I: "The Uncertainty of Science"
https://en.wikiquote.org/wiki/Richard_Feynman
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