“The moment you doubt whether you can fly, you cease for ever to be able to do it.”

“If you are ever in doubt as to whether or not you should kiss a pretty girl, always give her the benefit of the doubt.”

“pain has a way of clipping our wings and keeping us from being able to fly, and if left unresolved you can almost forget that you were ever created to fly in the first place.”

“They say that the eyes of some paintings can follow you around the room, a fact that I doubt, but I am wondering whether some music can follow you for ever.”

“I doubt if ever one ceases to love, but one can cease to be in love as easily as one can outgrow an author one admired as a boy.”

“Doubting yourself can be the biggest factor in holding yourself back. If you don't believe in yourself and send messages to yourself that you can't do this, or you will never be able to do this, you won't be successful. If you carry this attitude with you, then no, you won't be successful. Change your thinking! Change is not always easy, but once you change your thinking from negative to positive, your doubts begin to go away and you begin to manifest the positive. Don’t doubt yourself!”