I think, therefore I am.

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

If you fail, next time fail better.

Hard work beats talent when talent doesn't work hard.

Just stick with it, what seems hard now will one day be your warm up.

Never underestimate the importance of small steps. small steps = big changes. 

Fall down seven times, stand up eight.

Don't expect to be good at maths or understand things straight away. Be patient and persistent. Rome wasn't built in a day, but they worked on it every single day. 

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

We learn more from failure than we do from success.

FAIL - First Attempt In Learning

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

The master has failed more times than the beginner has even tried

I can is 100 times more important than IQ.

The road to success is like a staircase. If you want to succeed, double your failure rate