Dentist: a prestidigitator who, putting metal into your mouth, pulls coin out of your pocket.
Ambrose BierceUSAGE, n. The First Person of the literary Trinity, the Second and Third being Custom and Conventionality. Imbued with a decent reverence for this Holy Triad an industrious writer may hope to produce books that will live as long as the fashion.
Ambrose Bierce