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Rh elements, combination and proportion, it seems to typify, as it were, an atomic theory. Hippocrates, also, taught that the human body cannot be exclusively, either of air or fire, water or earth, or any single element; although, he adds, "I do not quarrel with such as think otherwise." Plato, likewise, “derived all things, so to say, from these four elements, in due proportion and relation to one another; so that what fire is to air, that air is to water, and water to earth, and each is, by affinity, united with others, to form whatever is visible and tangible.”