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

The boxer is not afraid of being knocked down, he is afraid of not being able to get up again.

Your attitude is everything. Pick a good one.

There is no elevator to success, you have to take the stairs.

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

The journey of a thousand miles begins with one step. 

Pure mathematics is in its way, the poetry of logical ideas.

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

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

Hard work beats talent when talent doesn't work hard.

Don’t practice until you get it right, practice until you can’t get it wrong.

Don't be afraid to take an unfamiliar path.  Sometimes they're the ones that lead you to the best places.

Don’t hang your targets after you’re done shooting.

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

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