Surprises and reverses can serve as an incentive for great accomplishment. There are no rules here, we're just trying to accomplish something.

I never did anything by accident, nor did any of my inventions come by accident; they came by work.

The trouble with most people is that they quit before they start.

Barring serious accidents, if you are not preoccupied with worry and you work hard, you can look forward to a reasonably lengthy existence.... Its not the hard work that kills, its the worrying that kills.

In creating technology for ourselves we created it for the world.

There is a better way for everything. Find it.

Fools call wise men fools. A wise man never calls any man a fool.