Beauty addresses itself chiefly to sight, but there is a beauty for the hearing too, as in certain combinations so words and in all kinds of music; for melodies and cadences are beautiful; and minds that lift themselves above the realm of sense to a higher order are aware of beauty in the conduct of life, in actions, in character, in the pursuits of the intellect; and there is the beauty of the virtues.
Plotinus (2015). “Delphi Complete Works of Plotinus - Complete Enneads (Illustrated)”, p.60, Delphi Classics