We've never lost an American in space, we're sure as hell not gonna lose one on my watch! Failure is not an option.

Failure is not an option!

Failiure is not an option.

To recognize that the greatest error is not to have tried and failed, but that in trying, we did not give it our best effort

I don't care what anything was designed to do, I care about what it can do.

You can not operate in this room unless you believe that you are Superman, and whatever happens, you're capable of solving the problem.

There is no such thing as good enough. You, your team, and your equipment must be the best. That is how you will win victories.

There is no achievement without risk.

I think everyone, once in his life, should be given a ticker-tape parade.

Spaceflight will never tolerate carelessness, incapacity, and neglect.

The nature of Nature is change.

That's what the movies do. They don't entertain us, they don't send the message: 'We care.' They give us lines to say, they assign us parts: John Wayne, Theda Bara, Shirley Temple, take your pick.

There is an opportunity for us to renew ourselves. There's an opportunity for us to leave the past behind and present something different for the future.

Basically, from the viewpoint of real human value we are all the same.

I must admit I suffered a bit when I first came to England. But then I realised that there was nothing to be intimidated by, everybody had two legs.

I've been asked this question so many times, do you feel you need to write a book for adults? No, I don't need to write a book for adults.

She's so fat, she's my two best friends.

All democracies demand common public education because nothing makes people so much alike as the same education.

Junior high is so much worse than high school because at least in high school different is more accepted, celebrated actually: all the girls with blue hair and gothic Hello Kitty backpacks.

Each mind has its own method.