Quadrivium: The Four Classical Liberal Arts of Number, Geometry, Music, & Cosmology PB_Gift_Guide But when he discovers she’s

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Quadrivium: The Four Classical Liberal Arts of Number, Geometry, Music, & Cosmology PB_Gift_Guide But when he discovers she’sA unique presentation of ancient knowledge; a glorious gift book in the Wooden Books series. The quadrivium the classical curriculum comprises the four liberal arts of number, geometry, music, and cosmology. It was studied from antiquity to the Renaissance as a way of glimpsing the nature of reality. Geometry is number in space; music is number in time; and cosmology expresses number in space and time. Number, music, and geometry are metaphysical