Harold Urey Professions : Chemist Born : April 29, 1893 Died : January 5, 1981 Browse All Authors Top 12 quotes by Harold Urey All of us who study the origin of life find that the more we look into it, the more we feel it is too complex to have evolved anywhere. We all believe as an article of faith that life evolved from dead matter on this planet. It is just that life's complexity is so great, it is hard for us to imagine that it did. Harold Urey origin-of-life believe looks Life is not a miracle. It is a natural phenomenon, and can be expected to appear whenever there is a planet whose conditions duplicate those of the earth. Harold Urey miracle earth science [My study of the universe] leaves little doubt that life has occurred on other planets. I doubt if the human race is the most intelligent form of life. Harold Urey intelligent race doubt I looked for it [heavy hydrogen, deuterium] because I thought it should exist. I didn't know it would have industrial applications or be the basic for the most powerful weapon ever known [the nuclear bomb] ... I thought maybe my discovery might have the practical value of, say, neon in neon signs. Harold Urey powerful discovery science Above all, I regret that scientific experiments-some of them mine-should have produced such a terrible weapon as the hydrogen bomb. Regret, with all my soul, but not guilt. Harold Urey regret should-have science [Pure research] is worth every penny it costs. Harold Urey cost research science Athens built the Acropolis. Corinth was a commercial city, interested in purely materialistic things. Today we admire Athens, visit it, preserve the old temples, yet we hardly ever set foot in Corinth. Harold Urey cities feet history I'm in Pittsburgh. Why am I here? Harold Urey humorous humor funny The space program is not only scientific in purpose but also is an expression of man's insistent determination to do the nearly impossible - to explore the unknown, even at great risk. Harold Urey great man space determination In general, exchange reactions for the lighter isotopes have equilibrium constants sufficiently different from unity, so that the ratios of concentrations of the isotopes in two compounds which are in equilibrium differ by a few per cents in nearly all cases. Harold Urey lighter unity different two The discovery of deuterium and the marked differences in the physical and chemical properties of hydrogen and deuterium, together with an efficient method for the separation of these isotopes, have opened an interesting field of research in several of the major branches of science. Harold Urey differences research together science Nature can always be more complicated than we imagine. Harold Urey more always nature complicated Similar Authors Auguste Laurent chemist August Wilhelm von Hofmann chemist August Kekule chemist Ascanio Sobrero chemist Antoine Lavoisier chemist Antoine Bechamp chemist All Authors
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