We must surrender our skepticism only in the face of rock-solid evidence. Science demands a tolerance for ambiguity. Where we are ignorant, we withho… - Carl Sagan

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We must surrender our skepticism only in the face of rock-solid evidence. Science demands a tolerance for ambiguity. Where we are ignorant, we withhold belief. Whatever annoyance the uncertainty engenders serves a higher purpose: It drives us to accumulate better data. This attitude is the difference between science and so much else. Science offers little in the way of cheap thrills. The standards of evidence are strict. But when followed they allow us to see far, illuminating even a great darkness.

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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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Additional quotes by Carl Sagan

"Al parecer anhelamos un privilegio, merecido no por nuestros esfuerzos, sino por nacimiento, digamos que por el mero hecho de ser humanos y de haber nacido en la Tierra. Podríamos llamarla la noción antropocéntrica, "centrada en el ser humano".

Está noción alcanza su culminación en la idea de que fuimos creados a imagen y semejanza de Dios: "El Creador y Gobernador de todo el universo es precisamente como yo. ¡Caramba, qué coincidencia! ¡Qué adecuado y satisfactorio!" El filósofo griego del siglo VI a. J.C. Jenófanes comprendió la arrogancia de esta perspectiva:

Los etíopes plasman a sus dioses negros y de nariz respingona; los tracianos dicen de los suyos que tienen los ojos azules y el pelo rojo... Sí, y si bueyes, caballos o leones tuvieran manos y pudieran pintar con ellas, y producir obras de arte como los hombres, los caballos pintarían a sus dioses con forma de caballo, los bueyes con forma de buey..."

Of all the planets, moons, asteroids, and comets in our Solar System, there is fire only on Earth — because there are large amounts of oxygen gas, O2, only on Earth. Fire was, much later, to have profound consequences for life and intelligence. One thing leads to another.

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