The errors which arise from the absence of facts are far more numerous and more durable than those which result from unsound reasoning respecting true data.
Charles Babbage
Obstacles are those frightful things you see when you take your eyes off your goal.
Henry Ford
If one does not fail at times, then one has not challenged himself.
Ferdinand Porsche
Whether you think you can, or you think you can’t–you’re right.
Henry Ford
I hate vacations. If you can build buildings, why sit on the beach?
Philip Johnson
If it weren't for the last minute nothing would get done.
Mark Twain
If an engineer has not had some failures, it is merely evidence that his practice has not been sufficiently extensive.
Benjamin Baker
When everything seems to be going against you, remember that the airplane takes off against the wind, not with it.
Henry Ford
With small blows you also fall big trees.
Benjamin Franklin
The best executive is the one who has sense enough to pick good men to do what he wants done, and self-restraint to keep from meddling with them while they do it.
Theodore Roosevelt