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

Shoot for the moon and even if you miss you’ll land among the stars/

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

The greatest glory in loving lies not in never falling, but in rising every time we fall.

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

Mathematics Is not a spectator sport. The only way to learn mathematics is to do mathematics.

Tomorrow is worth more than yesterday but less than today.

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

Failure to prepare = preparing to fail

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

If you really want something you’ll find a way. If you don’t you’ll find an excuse.

Skills are built not born.

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

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

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