When I have tried and failed, I shall have failed.

Every successful person you see is someone who did not give up.

I don't believe in failure. I'm perseverant - I believe in failing.

Paralyze resistance with persistence

I think perseverance and persistence is the key to everything. If there is something you really want to do, and you work hard enough I think you can definitely get there.

Change is hardest at the beginning, messiest in the middle and best at the end.