Skills are built not born.

Never underestimate the importance of small steps. small steps = big changes. 

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

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

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.

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

Everything you want is on the other side of fear

No one starts out on top. You have to work your way up.

You can hire a tutor but you can't hire someone to practice for you.

I can is 100 times more important than IQ.

We learn more from failure than we do from success.

Don't put off until tomorrow what you can do today. If today you have no time, it means tomorrow you'll be too tired and the next day you'll be something else.

You cannot escape the responsibility of tomorrow by evading it today

Fall down seven times, stand up eight.