Try QuoteGPT
Chat naturally about what you need. Each answer links back to real quotes with citations.
The scope and audacity of John Kennedy’s May 25, 1961, message to a joint session of Congress on “Urgent National Needs” — the speech that launched t… - Carl Sagan
" "The scope and audacity of John Kennedy’s May 25, 1961, message to a joint session of Congress on “Urgent National Needs” — the speech that launched the Apollo program — dazzled me. We would use rockets not yet designed and alloys not yet conceived, navigation and docking schemes not yet devised, in order to send a man to an unknown world — a world not yet explored, not even in a preliminary way, not even by robots — and we would bring him safely back, and we would do it before the decade was over. This confident pronouncement was made before any American had even achieved Earth orbit.
English
Collect this quote
About Carl Sagan
Carl Edward Sagan (9 November 1934 – 20 December 1996) was an American astronomer, planetary scientist, cosmologist, astrophysicist, astrobiologist, author, and science communicator. His best known scientific contribution is research on extraterrestrial life, including experimental demonstration of the production of amino acids from basic chemicals by radiation. Sagan assembled the first physical messages sent into space, the Pioneer plaque and the Voyager Golden Record, universal messages that could potentially be understood by any extraterrestrial intelligence that might find them. Sagan argued the hypothesis, accepted since, that the high surface temperatures of Venus can be attributed to, and calculated using, the greenhouse effect. He testified to the US Congress in 1985 that the greenhouse effect will change the earth's climate system.
Biography information from Wikiquote
Also Known As
Native Name:
Carl Edward Sagan
Alternative Names:
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
Related quotes. More quotes will automatically load as you scroll down, or you can use the load more buttons.
Additional quotes by Carl Sagan
If we're stuck on one world, we're limited to a single case; we don't know what else is possible. Then — like an art fancier familiar only with Fayoum tomb paintings, a dentist who knows only molars, a philosopher trained merely in NeoPlatonism, a linguist who has studied only Chinese, or a physicist whose knowledge of gravity is restricted to falling bodies on Earth — our perspective is foreshortened, our insights narrow, our predictive abilities circumscribed. By contrast, when we explore other worlds, what once seemed the only way a planet could be turns out to be somewhere in the middle range of a vast spectrum of possibilities. When we look at those other worlds, we begin to understand what happens when we have too much of one thing or too little of another. We learn how a planet can go wrong.
Enhance Your Quote Experience
Enjoy ad-free browsing, unlimited collections, and advanced search features with Premium.
Humans may crave absolute certainty; they may aspire to it; they may pretend, as partisans of certain religions do, to have attained it. But the history of science — by far the most successful claim to knowledge accessible to humans — teaches that the most we can hope for is successive improvement in our understanding, learning from our mistakes, an asymptotic approach to the Universe, but with the proviso that absolute certainty will always elude us.
Loading...