“If few can do it then you can do it,If no one can do it you must do it.”
“Do what you can as you can. Trouble, problems, will come no matter what you do , and you must respond as they come.”
“All you can do is all you can do. But all you can do is enough”
“I’m asking you not to do it. Can you do that for me? Can you do not doing it? ”
“You can do anything you want to do, but you can not do all the things you want to do.”
“If you are going to be successful, you must develop persistence. How do you do that? It is not easily condensed in one simple statement, but one thing you can be sure of is that your must define your purpose.”