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

Your limitation - its only your imagination.

When you make a mistake, take another chance. Only when you choose not to do so do you fail.

Success can never happen without the journey (struggle).

It is never too late to become what you might have been

I have not failed, I've just found 10,000 ways that won't work.

There is no talent here. There is hard work and obsession. You could be anyone if you put in the time.

Time is your friend, impulse is your enemy.

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

1.00³⁶⁵=1 and 1.01³⁶⁵=37.7. Doing nothing at all versus small steps at a time. 

Success is a journey, not a destination.

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

Nobody said it’d be easy, they just promised it would be worth it.

Hard work beats talent when talent doesn't work hard.

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