Nothing ever built arose to touch the skies unless some man dreamed that it should, some man believed that it could, and some man willed that it must.

I am not interested in the past. I am interested in the future, for that is where I expect to spend the rest of my life.

Obsolescence is a factor which says that the new thing I bring you is worth more than the unused value of the old thing.

It is the 'follow through' that makes the great difference between ultimate success and failure, because it is so easy to stop.

It doesn't matter if you try and try and try again, and fail. It does matter if you try and fail, and fail to try again.

In America we can say what we think, and even if we can't think, we can say it anyhow.

Do not bring me your successes; they weaken me. Bring me your problems; they strengthen me.