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" "И накрая най-външната част, която живее в трудно примирие с по-примитивните участъци на мозъка отдолу, е мозъчната кора, развила се преди милиони години у нашите предци примати. Мозъчната кора, където материята се превръща в съзнание, е мястото, от което се отправяме на всичките си космически пътешествия. Тя съставя повече от две трети от мозъчната маса и е царството на интуицията и критичния анализ. Тук се появяват идеите и вдъхновението, тук четем и пишем, тук правим изчисления и композираме музика. Кората регулира нашия съзнателен живот. Именно тя отличава нашия вид и е седалище на човешката ни природа. Цивилизацията е продукт на мозъчната кора.
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
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The business of scepticism is to be dangerous. Scepticism challenges established institutions. If we teach everybody, including, say, high school students, habits of sceptical thought, they will probably not restrict their scepticism to UFOs, aspirin commercials and 35,000-year-old channellees. Maybe they’ll start asking awkward questions about economic, or social, or political, or religious institutions. Perhaps they’ll challenge the opinions of those in power. Then where would we be?
Nuestro planeta y nuestro sistema solar se hallan rodeados por un nuevo mundo oceánico, las profundidades del espacio. Y no es más infranqueable que el de otras épocas. Quizá todavía es pronto. Puede que no haya llegado el momento. Pero esos otros mundos, que prometen indecibles oportunidades, nos hacen señas.