From Emerson's Essays, by Ralph Waldo Emerson
I do not see how any man can afford, for the sake of his nerves and his nap, to spare any action in which he can partake. It is pearls and rubies to his discourse. Drudgery, calamity, exasperation, want, are instructors in eloquence and wisdom. The true scholar grudges every opportunity of action past by, as a loss of power. It is the raw material out of which the intellect molds her splendid products. -- Ralph Waldo Emerson, "The American Scholar", p.70