The temptation to quit will be the greatest when you are about to succeed

I think, therefore I am.

I fear not the man who has practiced 10,000 kicks once, but I fear the man who has practiced one kick 10,000 times.

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

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

It is never too late to turn an unproductive day into a productive one.

A hero is no braver than an ordinary man, but he is braver five minutes longer.

Nothing is impossible if you want it badly enough. Impossible = I'm possible.

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

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

Don’t compare yourself to others. Compare yourself to the person you were yesterday.

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

It is never too late to become what you might have been

We are all maths people : step 1 - do maths and step 2 - be a person. 

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