> In Greek mythology, the Pierian Spring of Macedonia was sacred to the Pierides and the Muses. As the metaphorical source of knowledge of art and science, it w

> In Greek mythology, the Pierian Spring of Macedonia was sacred to the Pierides and the Muses. As the metaphorical source of knowledge of art and science, it was popularized by a couplet in Alexander Pope's 1711 poem An Essay on Criticism: "A little learning is a dang'rous thing; / Drink deep, or taste not the Pierian spring."