In order to know whether a human being is young or old, offer it food of different kinds at short intervals. If young, it will eat anything at any hour of the day or night.
Oliver Wendell Holmes, Jr.I know of no teachers so powerful and persuasive as the little army of specialists. They carry no banners, they beat no drums; but where they are men learn that bustle and push are not the equals of quiet genius and serene mastery.
Oliver Wendell Holmes, Jr.