From this moment forward, remember this: What you do is infinitely more important than how you do it. Efficiency is still important, but it is useless unless applied to the right things.
-Tim Ferriss, The 4-Hour Workweek
There is nothing so useless as doing efficiently what should not be done at all.
-- Peter Drucker
(I've quoted this line several times before.)
Here's the new thread for posting quotes, with the usual rules: