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Martin Rees
6 quotes
“Absence of evidence is not evidence of absence.”
Martin Rees (born 1942) first seen 1971 wikiquote, CC BY-SA 4.0 source
Recorded in: As quoted in Project Cyclops: A Design Study of a System for Detecting Extraterrestrial Intelligent Life (1971) by Bernard M. Oliver, and John Billingham, Ch. 2 : Life in the Universe, p. 3 <!-- ** quoted by {{citation
Also quoted by: Carl Sagan (misattributed), Carl Sagan
“Once the threshold is crossed when there is a self-sustaining level of life in space, then life's long-range future will be secure irrespective of any of the risks on Earth (with the single exception of the catastrophic destruction of space itself). Will this happen before our technical civilisation disintegrates, leaving this as a might-have-been? Will the self-sustaining space communities be established before a catastrophe sets back the prospect of any such enterprise, perhaps foreclosing it for ever? We live at what could be a defining moment for the cosmos, not just for our Earth.”
Martin Rees (born 1942) first seen 2003 wikiquote, CC BY-SA 4.0 source
Recorded in: Our Final Hour: A Scientist's Warning (2003) <!-- | date = 2003-03-18
“We’re all depressingly ‘lay’ outside our specialisms — my own knowledge, of recent biological advances, such as it is, comes largely from ‘popular’ books and journalism.”
Martin Rees (born 1942) wikiquote, CC BY-SA 4.0 source
“No one can say which approach is the right one — so no one can say how close we are to a solution.”
Martin Rees (born 1942) first seen 2012 wikiquote, CC BY-SA 4.0 source
Recorded in: On developing a unification of quantum theory, relativity and classical physics, "Conversation with Martin Rees" at the Templeton Foundation (1 June 2012)
“When I discover I'm wrong, I change my mind. What do you do?”
Martin Rees (born 1942) first seen 1997 wikiquote, CC BY-SA 4.0 source
Recorded in: overheard in a colloquium at Princeton University, ca. 1997
“... I'd want to emphasize that most progress in cosmology and astrophysics has been due to advanced instruments and technology — less than 5 per cent to armchair theory. And I'd expect that balance to continue.”
Martin Rees (born 1942) wikiquote, CC BY-SA 4.0 source