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You have to know the past to understand the present.

You have to know the past to understand the present.
– Carl Sagan

Related Quotes:

  1. We must understand the Cosmos as it is and not confuse how it is with how we wish it to be. – Carl Sagan
  2. If it takes a little myth and ritual to get us through a night that seems endless, who among us cannot sympathize and understand? – Carl Sagan
  3. Life is made of the past, present and the future. We’re shaped by our past, and we’re shaping our future with our present. – Ibrahim Emile
  4. To use the past to justify the present is bad enough-”but it’s just as bad to use the present to justify the past. – Amitav Ghosh
  5. Hope is Future and Future is present ,Present is past and Past is Mystery – Hamza Khan Takkar
  6. Somewhere, something incredible is waiting to be known. – Carl Sagan
  7. If you wish to make an apple pie from scratch, you must first invent the universe. – Carl Sagan
  8. Science is a way of thinking much more than it is a body of knowledge. – Carl Sagan
  9. We are all star stuff. – Carl Sagan
  10. We are star stuff which has taken its destiny into its own hands. – Carl Sagan
  11. There are no forbidden questions in science, no matters too sensitive or delicate to be probed, no sacred truths. – Carl Sagan
  12. We can’t help it. Life looks for life. – Carl Sagan
  13. Avoidable human misery is more often caused not so much by stupidity as by ignorance, particularly our ignorance about ourselves. – Carl Sagan
  14. Life is but a momentary glimpse of the wonder of this astounding universe, and it is sad to see so many dreaming it away on spiritual fantasy. – Carl Sagan
  15. The prediction I can make with the highest confidence is that the most amazing discoveries will be the ones we are not today wise enough to foresee. – Carl Sagan
  16. When we look up at night and view the stars, everything we see is shinning because of distant nuclear fusion. – Carl Sagan
  17. And you are made of a hundred trillion cells. We are, each of us, a multitude. – Carl Sagan
  18. Science cuts two ways, of course; its products can be used for both good and evil. But there’s no turning back from science. – Carl Sagan
  19. Observation: I can’t see a thing.Conclusion: Dinosaurs. – Carl Sagan
  20. Significant change might require those who are now high in the hierarchy to move downward many steps. This seems to them undesirable and is resisted. – Carl Sagan
  21. For ages men had used sticks to club and spear each other-”Anaximander of Miletus used the stick to measure time. – Carl Sagan
  22. Would not a rational society spend more on understanding and preventing, than on preparing for, the next war? – Carl Sagan
  23. Liberation from superstition is a necessary but not a sufficient condition for science. – Carl Sagan
  24. One glance at a book and you hear the voice of another person, perhaps someone dead for 1,000 years. To read is to voyage through time. – Carl Sagan
  25. Books are like seeds. They can lie dormant for centuries and then flower in the most unpromising soil. – Carl Sagan
  26. The sky calls to us. If we do not destroy ourselves, we will one day venture to the stars. – Carl Sagan
  27. the future belongs to those societies that treat new ideas as delicate, fragile and immensely valuable pathways to the future. – Carl Sagan
  28. The brain is like a muscle. When it is in use we feel very good. Understanding is joyous. – Carl Sagan
  29. The price we pay for the anticipation of our future is anxiety about it. – Carl Sagan
  30. Their position seems to be that their God is so great he doesn’t even have to exist. – Carl Sagan
  31. If you want to save your child from polio, you can pray or you can inoculate. … Choose science. – Carl Sagan
  32. Imagination will often carry us to worlds that never were, but without it we go nowhere. – Carl Sagan
  33. All her life, dreams had been her friends. Her dreams were unusually detailed, well-structured, colorful. – Carl Sagan
  34. Understanding is a kind of ecstasy – Carl Sagan
  35. Science gropes and staggers toward improved understanding. – Carl Sagan
  36. The universe is a pretty big place. If it’s just us, seems like an awful waste of space. – Carl Sagan
  37. The universe seems neither benign nor hostile, merely indifferent to the concerns of such puny creatures as we are. – Carl Sagan
  38. We are a way for the cosmos to know itself – Carl Sagan
  39. Civilization is a product of the cerebral cortex. – Carl Sagan
  40. Could we possible manage the next phase of human history without first dealing with this penchant for dehumanizing the adversary? – Carl Sagan

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