Foresight is the quality that makes a great merchant, but a man who has his desk littered with yesterday's business has no time to plan for to-morrow's. The only letters that can wait are those which provoke a hot answer. A good hot letter is always foolish, and you should never write a foolish thing if you can say it to the man instead, and never say it if you can forget it. The wisest man may make an ass of himself to-day, over to-day's provocation, but he won't tomorrow.
