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It is hard to see how one could begin to develop a quantum-theoretical description of brain action when one might well have to regard the brain as "observing itself" all the time!

— Roger Penrose The Emperor's New Mind (1989)

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More quotes by Roger Penrose

Children are not afraid to pose basic questions that may embarrass us, as adults, to ask.

The Emperor's New Mind (1989)

Understanding is, after all, what science is all about — and science is a great deal more than mindless computation.

Does life in some way make use of the potentiality for vast quantum superpositions, as would be required for serious quantum computation?

Children sometimes see things clearly that are obscured in later life.

The Emperor's New Mind (1989)

It seems to me that we must make a distinction between what is "objective" and what is "measurable" in discussing the question of physical reality, according to quantum mechanics.

The Emperor's New Mind (1989)

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Quote text and notes from Wikiquote: Roger Penrose (page history), available under CC BY-SA 4.0. Source quality and labels are our own summary of what Wikiquote records.