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

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

If you want to succeed, double your failure rate.

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

You can have results or excuses, not both

If you fail, next time fail better.

You're not in competition with anyone but yourself. Outdo your past, not other people.

Start, struggle, fail, fix and learn. Repeat.

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

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

Do what you have always done and you will always be what you have always been

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

A book a day keeps the stupidity away.

Mistakes have the power to turn you into something better than you were before.

Your limitation - its only your imagination.