Stephen Hawking Quotes
The past, like the future, is indefinite and exists only as a spectrum of possibilities.
Citations
Hawking, Stephen, and Leonard Mlodinow. The Grand Design. Bantam Books, 2010, p. 82.
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Stephen William Hawking CH CBE FRS FRSA was an English theoretical physicist, cosmologist, and author who was director of research at the Centre for Theoretical Cosmology at the University of Cambridge at the time of his death. He was the Lucasian Professor of Mathematics at the University of Cambridge between 1979 and 2009.