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" "If God is omnipotent and omniscient, why didn't he start the universe out in the first place so it would come out the way he wants? Why's he constantly repairing and complaining? No, there's one thing the Bible makes clear: The biblical God is a sloppy manufacturer. He's not good at design, he's not good at execution. He'd be out of business, if there was any competition.
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.
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Öyle garip kavramlarla yetiştirilmişiz ki, bizden birazcık değişik bir kişi ya da toplumla karşılaşınca, onların bize yabancılığı nedeniyle güvensizlik duyuyoruz ya da nefret ediyoruz. Oysa her bir uygarlığın anıtları ve kültürü, insan olmanın değişik biçimde anlatımından başka bir şey değildir. Yerküre-dışı bir ziyaretçi çeşitli insanlar ve insan toplumları arasındaki farklara göz attığında, aramızdaki benzerlikleri farklardan daha çok bulacaktır. Kozmos'u akıllı yaratıklar dolduruyor olabilir. Fakat Darwin'in öğretisi açıktır: Başka bir yerde insana rastlayamazsınız. Yalnızca gezegenimizde vardır insan. Bu küçücük gezegenimizde. Nadir ama tehlikeli bir türüz. Kozmik perspektifte, her birimiz çok değerliyiz. Eğer bir insanın sizinle aynı fikri paylaşmadığını fark ederseniz, aldırmayın, bırakınız bu gezegende yaşamaya devam etsin. Unutmayın, yüz milyar galaksiyi gezip tek bir insan bile bulamayabilirsiniz.
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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.