The leading rule for the lawyer, as for the man of every other calling, is diligence. Leave nothing for to-morrow [that] which can be done to-day. Never let your correspondence fall behind. Whatever piece of business you have in hand, before stopping, do all the labor pertaining to it which can then be done." The Collected Works of Abraham Lincoln edited by Roy P. Basler, Volume II, "Notes for a Law Lecture" (July 1, 1850), p. 81.