Success is not final and failure is not fatal. It is the courage to continue that counts.

Twenty years from now you will be more disappointed by the things you didn’t do than the things you did do

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

Success can never happen without the journey (struggle).

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.

He who has begun his task is half-way done. Have the courage to begin!

Don't fear failure, fear being in the same exact same place next year as you are now.

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

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

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

You cannot escape the responsibility of tomorrow by evading it today

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

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

The road to success is like a staircase. If you want to succeed, double your failure rate

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