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

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

Nobody said it’d be easy, they just promised it would be worth it.

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

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

We learn more from failure than we do from success.

No matter how bad it gets, you’re still way ahead of those who haven’t even started.

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

Your limitation - its only your imagination.

Time is your friend, impulse is your enemy.

Knowledge is of no value unless you put it into practice.

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

If you want to succeed, double your failure rate.

The wise person knows that no answer is also an answer

I have not failed, I've just found 10,000 ways that won't work.