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

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

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

The power of reflection is the most powerful skill you’ll learn.

Don't put off until tomorrow what you can do today. If today you have no time, it means tomorrow you'll be too tired and the next day you'll be something else.

I think, therefore I am.

Hard work - a two way street where you get exactly what you put in.

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

Fall down seven times, stand up eight.

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

I had no time is no excuse. 1 hour is 4% of your day and 1 minute is 0.34 % of your day.

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

We learn more from failure than we do from success.

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

If you want to succeed, double your failure rate.