It's very easy for me to say what success is. I think success is connecting with an audience who understands you and having a dialogue with them. I think success is continuing to push yourself forward creatively and not sort of becoming a caricature of yourself.

I can honestly say that I was never affected by the question of the success of an undertaking. If I felt it was the right thing to do, I was for it regardless of the possible outcome.

When you see something that is technically sweet, you go ahead and do it and you argue about what to do about it only after you have had your technical success. That is the way it was with the atomic bomb.

Hope is a state of mind, not of the world. Hope, in this deep and powerful sense, is not the same as joy that things are going well, or willingness to invest in enterprises that are obviously heading for success, but rather an ability to work for something because it is good.

Honesty is the cornerstone of all success, without which confidence and ability to perform shall cease to exist.

Success or failure in business is caused more by the mental attitude even than by mental capacities.

Success is the progressive realization of a worthy goal or ideal.

There's no secret about success. Did you ever know a successful man who didn't tell you about it?

There is no success without hardship.

Willpower is the key to success. Successful people strive no matter what they feel by applying their will to overcome apathy, doubt or fear.