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

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

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

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

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

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

If you want to succeed, double your failure rate.

Work like you don't need the money, dance like nobody's watching and love like you've never been hurt. 

Success is a journey, not a destination.

The master has failed more times than the beginner has even tried

Your attitude is everything. Pick a good one.

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

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

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

Don't expect to be good at maths or understand things straight away. Be patient and persistent. Rome wasn't built in a day, but they worked on it every single day.