Carl Sagan Quotes About Physics

Quotes about: Physics

• In science it often happens that scientists say, 'You know that's a really good argument; my position is mistaken,' and then they would actually change their minds and you never hear that old view from them again. They really do it. It doesn't happen as often as it should, because scientists are human and change is sometimes painful. But it happens every day. I cannot recall the last time something like that happened in politics or religion.

  Carl Sagan

  Change, Learning, Humility

  Keynote address at CSICOP conference in 1987. "Do Science and the Bible Conflict?" Book by Judson Poling, p. 30, 2003.

• The difference between physics and metaphysics is not that the practitioners of one are smarter than the practitioners of the other. The difference is that the metaphysicist has no laboratory.

  Carl Sagan

  Differences, Physics, Laboratory

  Carl Sagan (2011). “Demon-Haunted World: Science as a Candle in the Dark”, p.64, Ballantine Books

• In a lot of scientists, the ratio of wonder to skepticism declines in time. That may be connected with the fact that in some fields-mathematics, physics, some others-the great discoveries are almost entirely made by youngsters.

  Carl Sagan

  Science, Discovery, May

• A multitude of aspects of the natural world that were considered miraculous only a few generations ago are now thoroughly understood in terms of physics and chemistry.

  Carl Sagan

  Religion, Generations, World

  Carl Sagan (2011). “Demon-Haunted World: Science as a Candle in the Dark”, p.347, Ballantine Books

• We can't help it. Life looks for life.

  Carl Sagan

  Looks, Helping, Physics

  Carl Sagan, Ann Druyan (2011). “Pale Blue Dot: A Vision of the Human Future in Space”, p.21, Ballantine Books

• There are many hypotheses in physics of almost comparable brillance and elegance that have been rejected because they did not survive such a confrontation with experiment. In my view, the human condition would be greatly improved if such confrontations and willingness to reject hypotheses were a regular part of our social, political, economic, religious and cultural lives.

  Carl Sagan

  Religious, Views, Political

• Goddard represented a unique combination of visionary dedication and technological brilliance. He studied physics because he needed physics to get to Mars. In reading the notebooks of Robert Goddard, I am struck by how powerful his exploratory and scientific motivations were - and how influental speculative ideas, even erroneous ones, can be on the shaping of the future.

  Carl Sagan

  Notebook, Motivation, Powerful

  Carl Sagan (1979). “Broca's brain: reflections on the romance of science”, Random House Inc

• In science it often happens that scientists say, "You know that's a really good argument; my position is mistaken..."

  Carl Sagan

  Change, Science, Theoretical Physics

  Keynote address at CSICOP conference, 1987.

• The prediction of nuclear winter is drawn not, of course, from any direct experience with the consequences of global nuclear war, but rather from an investigation of the governing physics.

  Carl Sagan

  War, Winter, Science

  "A Path Where No Man Thought: Nuclear Winter and the End of the Arms Race". Book by Carl Sagan, p. 26, 1990.

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