We are more than just flesh and bones. There's a certain spiritual nature and something of the mind that we can't measure. We can't find it. With all our sophisticated equipment, we cannot monitor or define it, and yet it's there.

Success is determined not by whether or not you face obstacles, but by your reaction to them. And if you look at these obstacles as a containing fence, they become your excuse for failure. If you look at them as a hurdle, each one strengthens you for the next.

And I've always said, 'If two people think the same thing about everything, one of them isn't necessary.' We need to be able to understand that if we're going to make real progress.

No one is ever better off with dictators but there comes a time you know, when you're on an airplane, they always say, "in case of an emergency oxygen masks will drop down. Put yours on first and then administer help to your neighbor." We need oxygen right now.

There's no such thing as useless knowledge. You never know what doors it's going to open up for you.

The kind of job doesn't matter. The length of time on the job doesn't matter... If you work hard and do your best, you'll be recognized and move onward.

Through the use of books I had the whole world at my feet: could travel anywhere, meet anyone, and do anything.