" the seven “liberal arts”: Grammar, the foundation of science; Logic, which differentiates the true from the false; Rhetoric, the source of law; Arithmetic, the foundation of order because “without numbers there is nothing”; Geometry, the science of measurement; Astronomy, the most noble of the sciences because it is connected with Divinity and Theology; and lastly Music. "

― Barbara W. Tuchman , A Distant Mirror: The Calamitous 14th Century