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" "The gears of poverty, ignorance, hopelessness, and low self-esteem mesh to create a kind of perpetual failure machine that grinds down dreams from generation to generation. We all bear the cost of keeping it running. Illiteracy is its linchpin.
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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Dois homens chegaram a um buraco no céu. Um pediu ao outro ajuda para se erguer até a abertura... Mas era tão bonito no céu que o homem que espiou pela beirada esqueceu tudo, esqueceu o companheiro a quem tinha prometido ajudar a subir e simplesmente saiu correndo para entrar em todo o esplendor celeste. De um poema em prosa esquimó iglulik, do início do século XX, recitado por Inugpasugjuk a Knud Rasmussen, o explorador ártico da Groenlândia
You'd be surprised how rarely something like that happens. In the long run, the aggressive civilizations destroy themselves, almost always. It's their nature. They can't help it. In such a case, our job would be to leave them alone. To make sure that no one bothers them. To let them work out their destiny.
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