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" "Any faith that admires truth, that strives to know God, must be brave enough to accommodate the universe.
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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In less than ten thousand years, domestication has increased the weight of wool grown by sheep from less than one kilogram of rough hairs to ten or twenty kilograms of uniform, fine down; or the volume of milk given by cattle during a lactation period from a few hundred to a million cubic centimeters. If artificial selection can make such major changes in so short a period of time, what must natural selection, working over billions of years, be capable of? The answer is all the beauty and diversity of the biological world. Evolution is a fact, not a theory.
"ولكنه عاد يتذكر أن الاستذكار للامتحان النهائي كان له تأثير معوق عليه بحيث إنه يجد أن "التفكير في أي معضلة علمية شيء كريه لمدة عام كامل، ... وإنه ليكاد يكون من المعجزات أن الطرق الحديثة للتعليم لم تخنق الفضول المقدس للمعرفة والبحث، لأن ذلك النبت الصغير الرقيق يحتاج أكثر ما يحتاج، إضافة إلى التشجيع المبدئي، إلى الحرية، فبدونها سوف يُدمر. ... وإني أؤمن بأن بوسع المرء أن يقضي على نهم حيوان مفترس في صحة جيدة إن هو أجبره بالسياط على أن يأكل بصورة مستمرة سواء كان جائعًا أم لا
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