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

Everything that happens was once a dream.

Work ethic is important, because, unlike intelligence, athleticism, or charisma, or any natural attribute, it’s a choice.

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

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

We learn more from failure than we do from success.

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

If you can understand just one thing thoroughly, then you will understand everything.

Fall down seven times, stand up eight.

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

We learn more from failure than we do from success.

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

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

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

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