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Anaximenes(ăn'əksĭm`ĭnēz), Greek philosopher, 6th cent. B.C., last of the Milesian school founded by ThalesThales
, c.636–c.546 B.C., pre-Socratic Greek philosopher of Miletus and reputed founder of the Milesian school of philosophy. He is the first recorded Western philosopher. Thales taught that everything in nature is composed of one basic stuff, which he thought to be water.
..... Click the link for more information. . With Thales he held that a single element lay behind the diversity of nature, and with AnaximanderAnaximander
, c.611–c.547 B.C., Greek philosopher, b. Miletus; pupil of Thales. He made the first attempt to offer a detailed explanation of all aspects of nature.
..... Click the link for more information. he sought a principle to account for diversity. He believed that single element to be air. The principle of diversification he taught was rarefaction and condensation. Different objects were therefore merely different degrees of density of the one basic element. Anaximenes anticipates the spirit of modern scientific practice that seeks to explain qualitative differences quantitatively.