When I hear a man discoursing of virtue, or of any sort of wisdom, who is a true man and worthy of his theme, I am delighted beyond measure: and I compare the man and his words, and note the harmony and correspondence of them. And such an one I deem to be the true musician, having in himself a fairer harmony than that of the lyre.
Plato (1871). “The Dialogues of Plato”, p.87