Genius is seldom recognized for what it is: a great capacity for hard work.
Anyone who keeps learning stays young.
If I had asked people what they wanted, they would have said faster horses.
Machines were devised not to do a man out of a job, but to take the heavy labor from man's back and place it on the broad back of the machine.
One who fears failure limits his activities.
Any decision you make isn't worth a tinkers damn until you have formed the habit of making and keeping it.