We're worn into grooves by Time - by our habits. In the end, these grooves are going to show whether we've been second-rate or champions, each in his way, in dispatching the affairs of every day. By choosing our habits, we determine the grooves into which Time will wear us; and these are grooves that enrich our lives and make for ease of mind, peace, happiness - achievement.
American Magazine, Vol. 103, (p. 183), 1927.