Failure is not the crime. Low aim is.
I am not as good as I ought to be. I am not as good as I want to be. I am not as good as I'm going to be. But I am thankful that I am better than I used to be.
Rest when you need to, but never quit.
I think you have to be what you are. Don't try to be somebody else. You have to be yourself at all times.
Never let your emotions overrule your head.
I think the teaching profession contributes more to the future of our society than any other single profession.