Any physical theory is always provisional, in the sense that it is only a hypothesis: you can never prove it. No matter how many times the results of experiments agree with some theory, you can never be sure that the next time the result will not contradict the theory.

Stephen Hawking

Stephen Hawking

English physicist

8 January 1942 —

Stephen Hawking: A Brief History of Time

A Brief History of Time

Chapter 1




Time of publication: August 31, 2011

Length: 269 characters

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