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Hagen's discussions of theses on the origin of life, albeit based on intense scientific thought and research, sound like they could be examples taken from Teilhard de Chardin's "Phenomenon of Man." Consider in de Chardin's chapter three, entitled "The Earth in Its Early Stages" the following topics: The Crystallizing World, The Polymerizing World. As de Chardin states, "'In the world, nothing could ever burst forth as final across the different thresholds traversed by eveolution (however critical they may be) which has not already existed in an obscure and primordial way.' If the organic had not existed on the earth from the first moment at which it was possible, it would never have begun later."