“A set of teeth is a tool chest containing various different implements. The incisors (a) cut the food, (b) the canines perforate it, (c) the carnassials saw through it and the molars (d) grind up the crumbs. The tongue converts the food broken up by the teeth into mush; it is covered with papillae shaped like clubs, rollers, graters and brushes.”
1939, © Fritz Kahn