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

Good mathematics is not about how many answers you know... It is about how you behave when you don't know.

Time is your friend, impulse is your enemy.

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

The temptation to quit will be the greatest when you are about to succeed

Whenever you find yourself doubting how far you can go, just remember how far you have come.

Tomorrow is worth more than yesterday but less than today.

Success can never happen without the journey (struggle).

Shoot for the moon and even if you miss you’ll land among the stars/

Run in the morning before your body figures out what you're doing

Your limitation - its only your imagination.

Hard work - a two way street where you get exactly what you put in.

In order to become better than anybody else you must first become better than yourself.

You can pick up a mistake and carry it as a burden,  or you can set it down as use it as a stepping stone to greatness.

Don’t practice until you get it right, practice until you can’t get it wrong.