The UNIX Philosophy Ken Thompson has an automobile which he helped design. Unlike most automobiles, it has neither speedometer, nor gas guage, nor any of the other numerous idiot lights which plague the modern driver. Rather, if the driver makes a mistake, a GIANT "?" lights up in the center of the dashboard. "The experienced driver," says he, "will usually know what's wrong." Orignal source unknown; found on Joseph Evans' (Electrical and Computer Engineering professor at Kansas University) door.
(From the "Rest" of RHF)