Somos el producto de cinco mil millones de años de evolución biológica lenta, fortuita, y no hay razón alguna para pensar en que se haya detenido tal… - Carl Sagan

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Somos el producto de cinco mil millones de años de evolución biológica lenta, fortuita, y no hay razón alguna para pensar en que se haya detenido tal proceso evolutivo. El hombre es un animal en período de transición. No es el clímax de una creación.

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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
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The unprecedented powers that science now makes available must be accompanied by unprecedented levels of ethical focus and concern by the scientific community — as well as the sort broadly based public education into the importance of science and democracy.

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Numa vida curta e incerta, parece cruel fazer qualquer coisa que possa privar as pessoas do consolo da fé, quando a ciência não pode remediar a sua angústia. Aqueles que não conseguem suportar o peso da ciência têm a liberdade de ignorar os seus preceitos. Mas não podemos fazer ciência aos pedacinhos, aplicando-a quando nos sentimentos seguros e ignorando-a quando nos sentimos ameaçados - mais uma vez, porque não temos sabedoria para tanto. A não ser dividindo a mente em compartimentos herméticos separados, como é possível voar em aeroplanos, escutar rádio ou tomar antibióticos, sustentando ao mesmo tempo que a Terra tem cerca de 10 mil anos ou que todos os sagitarianos são gregários e afáveis?

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