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" "All my life, I've wondered about life beyond the earth. On those countless other planets that we think circle other suns, is there also life? Might the beings of other worlds resemble us, or would they be astonishingly different? What would they be made of? In the vast Milky Way galaxy, how common is what we call life? The nature of life on earth and the quest for life elsewhere are the two sides of the same question: the search for who we are.
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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Mi smo ovdašnje utjelovljenje jednog kozmosa koji je izrastao do samosvijesti. Počeli smo razmišljati o našem porijeklu: zvjezdana tvar koja razmišlja o zvijezdama; organizirani skupovi od deset milijardi milijarda atoma koji razmišljaju o evoluciji atoma slijedeći u mislima dugi put na kraju kojeg je, barem ovdje, niknula svijest. Naša je odanost upućena ljudskoj vrsti i planetu. Mi govorimo u ime Zemlje. Obavezu da preživimo ne dugujemo samo sebi samima već i tom kozmosu, prostranom i golemom iz kojeg smo ponikli.
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TABLE OF PROPOSED RULES TO LIVE BY The Golden Rule Do unto others as you would have them do unto you.
The Silver Rule Do not do unto others what you would not have them do unto you.
The Brazen (Brass) Rule Do unto others as they do unto you.
The Iron Rule Do unto others as you like, before they do it unto you.
The Tit-for-Tat Rule Cooperate with others first, then do unto them as they do unto you.