"Those who can, do; those who can't, teach. And those who can't teach, go into administration."
"To succeed, you must have tremendous perseverance, tremendous will. "I will drink the ocean", says the persevering soul; "at my will mountains will crumble up". Have that sort of energy, that sort of will; work hard, and you will reach the goal."
"The test of our progress is not whether we add more to the abundance of those who have much; it is whether we provide enough for those who have too little."