CLOCK, n.
A machine of great moral value to man, allaying his concern for the future by reminding him what a lot of time remains to him.
A busy man complained one day: "I get no time!" "What's that you say?" Cried out his friend, a lazy quiz; "You have, sir, all the time there is. There's plenty, too, and don't you doubt it-- We're never for an hour without it."
Purzil Crofe
--Ambrose Bierce - The Devil's Dictionary