Our users don’t want quarter-inch drills, they want quarter inch holes.
Whom the gods wish to destroy they first call promising.
"What was the Sherlock Holmes principle? 'Once you have discounted the impossible, then whatever remains, however improbable, must be the…
Whether you believe you can do a thing or not, you are right.
This is actually Leo McGinneva, quoted by Theodore Levitt in “The Marketing Imagination”