Adolph Knigge’s Über den Umgang mit Menschen, On Dealing with People, first appeared in 1788. In the first chapter of later editions, Knigge tells his reader: Sei streng gegen dich selbst, pünktlich, ordentlich, arbeitsam, fleißig in Deinem Berufe! Be strict with yourself, punctual, orderly, hardworking, diligent in your profession. He gives a reason. Everyone likes to deal and do business with a person whose punctuality in word and deed can be relied on. Then he goes further. Be exactly where you mean to appear, at the set and proper hour, und wärst Du auch der einzige, der diese Ordnung beobachtet, even if you are the only one who keeps this order.