Here is the secret of inspiration: Tell yourself that thousands and tens of thousands of people, not very intelligent and certainly no more intelligent than the rest of us, have mastered problems as difficult as those that now baffle you. William Feather
Once you have mastered time, you will understand how true it is that most people overestimate what they can accomplish in a year - and underestimate what they can achieve in a decade! Tonynn robbins
Science has not yet mastered prophecy. We predict too much for the next year and yet far too little for the next 10.Neil Armstrong
The patience that goes with the game, the little things that go along with the game, you have so much more time to think in golf than you do in football - you have to keep your thoughts positive. I'm not sure I've got that mastered.John Elway
Unless you try to do something beyond what you have already mastered, you will never grow. Ralph Waldo Emerson