Failures, repeated failures, are sign-posts on the road to achievement. The only time you don't want to fail is the last time you try something (and it works).

If you're doing something the same way you have been doing it for ten years, the chances are you are doing it wrong.

What I believe is that, by proper effort, we make the future almost anything we want to make it.

The typical eye sees the ten per cent bad of an idea and overlooks the ninety per cent good.

When I was research head of General Motors and wanted a problem solved, I'd place a table outside the meeting room with a sign: "Leave slide rules here." If I didn't do that, I'd find someone reaching for his slide rule. Then he'd be on his feet saying, "Boss, you can't do it."

People think of the inventor as a screwball, but no one ever asks the inventor what he thinks of other people.

An inventor fails 999 times, and if he succeeds once, he's in. He treats his failures simply as practice shots.