Children, who play life, discern its true law and relations more clearly than men, who fail to live it worthily, but who think that they are wiser by experience, that is, by failure.
Henry David Thoreau
Henry David Thoreau (1817–1862), U.S. philosopher, author, naturalist. Walden (1854), in The Writings of Henry David Thoreau, vol. 2, p. 106, Houghton Mifflin (1906).