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

There are no shortcuts to any place worth going.

Don’t confuse your path with your destination. Just because its stormy now doesn’t mean you are headed for failure.

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

You cannot escape the responsibility of tomorrow by evading it today

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

The easiest person to deceive is yourself.

If you fail, next time fail better.

Don’t be afraid to work hard and find out how good you can really be.

Try and do one thing each day that you would really rather not do.

Failure is NOT your destiny. Failure is the key to success.

It doesn’t matter where you start, it matters how you end

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

Yesterday is history, tomorrow is a mystery, but today is a gift—that's why it's called 'the present

Work on your weaknesses until they are your strengths and work on your strengths until they are second nature.