We all have two lives. The second begins when we realise we only have one. 

The wise person knows that no answer is also an answer

You cannot start the next chapter of your life if you keep re-reading the last one.

Good mathematics is not about how many answers you know... It is about how you behave when you don't know.

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

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

You can hire a tutor but you can't hire someone to practice for you.

Failure to prepare = preparing to fail

Success is a journey, not a destination.

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

Failure is not the opposite of success, it is part of the success.

Procrastination makes easy things hard and hard things harder.

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

Skills are built not born.

99% of genius comes from hard work, the remaining 1% comes from innate talent