“Skeptical scrutiny is the means, in both science and religion, by which deep thoughts can be winnowed from deep nonsense.”

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Carl Sagan365

American astrophysicist, cosmologist, author and science ed… 1934–1996

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“Both borderline science and many religions are motivated in part by a serious concern about the nature of the universe and our role in it, and for this reason merit our consideration and regard. In addition, I think it possible that many religions involve at their cores an attempt to come to grips with profound mysteries of our individual life histories, as described in the last chapter. But both in borderline science and in organized religion there is much that is specious or dangerous. While the practitioners of such doctrines often wish there were no criticisms to which they are expected to reply, skeptical scrutiny is the means, in both science and religion, by which deep insights can be winnowed from deep nonsense.”

Carl Sagan book Broca's Brain

Introduction (p. xii)
Broca's Brain (1979)

“This is how deep truths are winnowed from deep nonsense.”

Carl Sagan (1934–1996) American astrophysicist, cosmologist, author and science educator

Source: The Demon-Haunted World : Science as a Candle in the Dark (1995), Ch. 17 : The Marriage of Skepticism and Wonder
Context: At the heart of science is an essential balance between two seemingly contradictory attitudes - an openness to new ideas, no matter how bizarre or counterintuitive, and the most ruthlessly skeptical scrutiny of all ideas, old and new. This is how deep truths are winnowed from deep nonsense. The collective enterprise of creative thinking and skeptical thinking, working together, keeps the field on track. Those two seemingly contradictory attitudes are, though, in some tension.

“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)

“I'm tired of all this nonsense about beauty being only skin-deep. That's deep enough. What do you want—an adorable pancreas?”

Jean Kerr (1922–2003) Irish-American author and playwright

"Mirror, Mirror on the Wall, I Don't Want to Hear One Word Out of You"
The Snake Has All the Lines (1960)

“Skepticism is part of reflection… In religion and ethics, in politics, you have to be skeptical of claims that people make. It applies to all parts of life. Your own beliefs and the beliefs of others, and your willingness to examine these, to see if they hold up under scrutiny.”

Paul Kurtz (1925–2012) American professor of philosophy

9:40–10:10
Exuberant Skepticism (2012)

“Deep down within the heart there is a stillness which is healing, a trust in the universal laws which is unwavering, and a strength which is rock-like. But because it is so deep we need both patience and perseverance when digging for it.”

Paul Brunton (1898–1981) British philosopher

Source: The Notebooks of Paul Brunton

“Science is not going to change its commitment to the truth. We can only hope religion changes its commitment to nonsense.”

Victor J. Stenger (1935–2014) American philosopher

[02/19/2013, Science and Religion Cannot Be Reconciled, Huffington Post, http://www.huffingtonpost.com/victor-stenger/religion-and-science-_b_2719280.html]