Quadrivium: The Four Classical Liberal Arts of Number, Ge...
Lundy, Miranda / Sutton, Daud / Ashton, Anthony
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 truths: life across the universe investigates them, they foreshadow the physical sciences...