Nothing is impossible if you want it badly enough. Impossible = I'm possible.

Work on your weaknesses until they are your strengths and work on your strengths until they are second nature.

Instead of finding reasons why you can't, find reasons why you can.

The easiest person to deceive is yourself.

I think, therefore I am.

If you fail, next time fail better.

Don't be afraid to take an unfamiliar path.  Sometimes they're the ones that lead you to the best places.

We learn more from failure than we do from success.

Each day is an opportunity to improve. Aim to be that little bit better than yesterday and better tomorrow than today.

Don’t be afraid to work hard and find out how good you can really be.

You cannot start the next chapter of your life if you keep re-reading the last one.

Be strong enough to stand alone, smart enough to know when you need help, and brave enough to ask for it.

Practice like you’ve never won. Perform like you’ve never lost.

Work like you don't need the money, dance like nobody's watching and love like you've never been hurt. 

Work ethic is important, because, unlike intelligence, athleticism, or charisma, or any natural attribute, it’s a choice.