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They (i. e., the Pythagoreans) did not advocate the free confrontation of conflicting points of view. Instead, like all orthodox religions, they practised a rigidity that prevented them from correcting their errors.
Carl Sagan
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Carl Sagan
Age: 62 †
Born: 1934
Born: November 9
Died: 1996
Died: December 20
Astronomer
Astrophysicist
Cosmologist
Naturalist
Non-Fiction Writer
Novelist
Physicist
Planetary Scientist
Science Communicator
Brooklyn
New York
Carl Edward Sagan
Sagan
Carl E. Sagan
Carl E Sagan
C. E. Sagan
C.E. Sagan
C E Sagan
C. Sagan
C Sagan
Sagan C
Sagan C.
Sagan C. E.
Sagan CE
Like
Orthodox
Religions
Practised
Points
Rigidity
Errors
Conflicting
View
Prevented
Instead
Correcting
Views
Advocate
Free
Confrontation
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The immense distances to the stars and the galaxies mean that we see everything ins pace int he past, some as they were before the Earth came to be. Telescopes are time machines.
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Extraordinary claims demand extraordinary evidence
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We are at a crossroads in human history. Never before has there been a moment so simultaneously perilous and promising. We are the first species to have taken evolution into our own hands.
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In our time, we have sifted the sands of Mars, we have established a presence there, we have fulfilled a century of dreams!
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Books permit us to voyage through time, to tap the wisdom of our ancestors.
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The neurochemistry of the brain is astonishingly busy, the circuitry of a machine more wonderful than any devised by humans. But there is no evidence that its functioning is due to anything more than the 10(14) neural connections that build an elegant architecture of consciousness.
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But I could be wrong.
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In the long run, the aggressive civilizations destroy themselves, almost always. It's their nature. They can't help it.
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If we do not speak for Earth, who will? If we are not committed to our own survival, who will be?
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History is full of people who out of fear, or ignorance, or lust for power has destroyed knowledge of immeasurable value which truly belongs to us all. We must not let it happen again.
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A new consciousness is developing which sees the earth as a single organism and recognizes that an organism at war with itself is doomed. We are one planet.
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Science arouses a soaring sense of wonder. But so does pseudoscience. Sparse and poor popularizations of science abandon ecological niches that pseudoscience promptly fills. If it were widely understood that claims to knowledge require adequate evidence before they can be accepted, there would be no room for pseudoscience.
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The total number of stars in the Universe is larger than all the grains of sand on all the beaches of the planet Earth.
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Books are like seeds. They can lie dormant for centuries and then flower in the most unpromising soil.
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Our loyalties are to the species and the planet. We speak for Earth.
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In a complex universe, in a society undergoing unprecedented change, how can we find the truth if we are not willing to question everything and to give a fair hearing to everything?
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A googolplex is precisely as far from infinity as is the number 1... no matter what number you have in mind, infinity is larger still.
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Even Johannes Kepler, Isaac Newton, Charles Darwin, Gregor Mendel, and Albert Einstein made serious mistakes. But the scientific enterprise arranges things so that teamwork prevails: What one of us, even the most brilliant among us, misses, another of us, even someone much less celebrated and capable, may detect and rectify.
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Except in pure mathematics, nothing is known for certain (although much is certainly false).
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