The difference between a ...

The difference between a successful person and others is not lack of strength not a lack of knowledge but rather a lack of will.
The difference between a successful person and others is not lack of strength not a lack of knowledge but rather a lack of will.

More phrases

It really is all about believing in yourself: 80 per cent mental, 20 per cent physical.
 Victoria Pendleton
Courage - a perfect sensibility of the measure of danger, and a mental willingness to endure it.
 William Tecumseh Sherman
Regardless of how you feel inside, always try to look like a winner. Even if you are behind, a sustained look of control and confidence can give you a mental edge that results in victory.
 Diane Arbus
Courage is rightly esteemed the first of human qualities... because it is the quality which guarantees all others.
Optimism is the faith that leads to achievement. Nothing can be done without hope and confidence.

Quotes from the same author

Winners never quit and quitters never win.
The spirit, the will to win, and the will to excel, are the things that endure. These qualities are so much more important than the events that occur.
If you'll not settle for anything less than your best, you will be amazed at what you can accomplish in your lives.
Leaders aren't born they are made. And they are made just like anything else, through hard work. And that's the price we'll have to pay to achieve that goal, or any goal.
“Show me a good loser, and I’ll show you a loser.”