The hammer doesn't build the house.
Don't let your ego get in the way of your success.
If you're doing Plyometrics you can jump higher and run faster and your heart and lungs are going to kick the panties off of anybody else that tries to get out there without it.
Don’t say ‘I can’t,’ say ‘I presently struggle with.’
Turn off your mind, and focus on what you've got to do - task at hand.
All I ask is that you do your best, and forget the rest.