The Value Of Wisdom

Automaker Henry Ford asked electrical genius Charlie Steinmetz to build
the generators for his factory. One day the generators ground to a halt,
and the repairmen couldn't find the problem. So Ford called Steinmetz,
who tinkered with the machines for a few hours and then threw the
switch. The generators whirred to life--but Ford got a bill for $10,000
from Steinmetz. Flabbergasted, the rather tightfisted car maker inquired
why the bill was so high. Steinmetz's reply: For tinkering with the
generators, $10. For knowing where to tinker, $9,990. Ford paid the
bill.

Today in the Word, MBI, April, 1990, p. 27