Carl Sagan: Use

Carl Sagan was American astrophysicist, cosmologist, author and science educator. Explore interesting quotes on use.

Carl Sagan: 730 quotes51 likes

“If there's nothing in here but atoms, does that make us less or does that make matter more?”

The Varieties of Scientific Experience: A Personal View of the Search for God (2006)

“We are set irrevocably, I believe, on a path that will take us to the stars—unless in some monstrous capitulation to stupidity and greed, we destroy ourselves first.”

Carl Sagan book Broca's Brain

Source: Broca's Brain (1979), Chapter 25, “The Amniotic Universe” (p. 368)

“In any case, we do not advance the human cause by refusing to consider ideas that make us frightened.”

Carl Sagan book Broca's Brain

Source: Broca's Brain (1979), Chapter 25, “The Amniotic Universe” (p. 364)

“It is a good idea not to make up our minds prematurely on this issue. It is probably best not to let our personal preferences influence the decision. Rather, in the long tradition of successful science, we should permit nature to reveal the truth to us.”

Carl Sagan book Broca's Brain

Source: Broca's Brain (1979), Chapter 24, “Gott and the Turtles” (p. 351)

“The First Amendment to the United States Constitution encourages a diversity of religions but does not prohibit criticism of religion. In fact it protects and encourages criticism of religion. Religions ought to be subject to at least the same degree of skepticism as, for example, contentions about UFO visitations or Velikovskian catastrophism. I think it is healthy for the religions themselves to foster skepticism about the fundamental underpinnings of their evidential bases. There is no question that religion provides a solace and support, a bulwark in time of emotional need, and can serve extremely useful social roles. But it by no means follows that religion should be immune from testing, from critical scrutiny, from skepticism. It is striking how little skeptical discussion of religion there is in the nation that Tom Paine, the author of The Age of Reason, helped to found. I hold that belief systems that cannot survive scrutiny are probably not worth having.”

Carl Sagan book Broca's Brain

Source: Broca's Brain (1979), Chapter 23, “A Sunday Sermon” (p. 338)

“Vigorous criticism is more constructive in science than in some other areas of human endeavor because in science there are adequate standards of validity that can be agreed upon by competent practitioners the world over. The objective of such criticism is not to suppress but rather to encourage the advance of new ideas: those that survive a firm skeptical scrutiny have a fighting chance of being right, or at least useful.”

Carl Sagan book Broca's Brain

Source: Broca's Brain (1979), Chapter 7, “Venus and Dr. Velikovsky” (p. 98)

“For many people, the shoddily thought out doctrines of borderline science are the closest approximation to comprehensible science readily available. The popularity of borderline science is a rebuke to the schools, the press and commercial television for their sparse, unimaginative and ineffective efforts at science education; and to us scientists, for doing so little to popularize our subject.”

Carl Sagan book Broca's Brain

Source: Broca's Brain (1979), Chapter 5, “Night Walkers and Mystery Mongers: Sense and Nonsense at the End of Science” (p. 63)

“All inquiries carry with them some element of risk. There is no guarantee that the universe will conform to our predispositions. But I do not see how we can deal with the universe—both the outside and the inside universe—without studying it. The best way to avoid abuses is for the populace in general to be scientifically literate, to understand the implications of such investigations. In exchange for freedom of inquiry, scientists are obliged to explain their work. If science is considered a closed priesthood, too difficult and arcane for the average person to understand, the dangers of abuse are greater. But if science is a topic of general interest and concern—if both its delights and its social consequences are discussed regularly and competently in the schools, the press, and at the dinner table—we have greatly improved our prospects for learning how the world really is and for improving both it and us.”

Carl Sagan book Broca's Brain

Source: Broca's Brain (1979), Chapter 1, “Broca’s Brain” (pp. 13-14)

“Society corrupts the best of us. It is a little unfair, I think, to criticize a person for not sharing the enlightenment of a later epoch, but it is also profoundly saddening that such prejudices were so extremely pervasive. The question raises nagging uncertainties about which of the conventional truths of our own age will be considered unforgivable bigotry by the next.”

Carl Sagan book Broca's Brain

Source: Broca's Brain (1979), Chapter 1, “Broca’s Brain” (p. 11)

“Evolution often uses this strategy. Indeed, the standard evolutionary practice of increasing the amount of genetic information as organisms increase in complexity is accomplished by doubling part of the genetic material and then allowing the slow specialization of function of the redundant set.”

Source: The Dragons of Eden (1977), Chapter 7, “Lovers and Madmen” (p. 183)

“At any rate, both because of the clear trend in the recent history of biology and because there is not a shred of evidence to support it, I will not in these pages entertain any hypotheses on what used to be called the mind-body dualism, the idea that inhabiting the matter of the body is something made of quite different stuff, called mind.”

Introduction (p. 7)
The Dragons of Eden (1977)