Full Idea
Music may be called a knowledge of the principles of love in the realm of harmony and rhythm.
Gist of Idea
Music is a knowledge of love in the realm of harmony and rhythm
Source
Plato (The Symposium [c.384 BCE], 187c)
Book Reference
Plato: 'The Symposium', ed/tr. Hamilton,W [Penguin 1951], p.55