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

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. 

The journey of a thousand miles begins with one step.

Instead of finding reasons why you can't, find reasons why you can.

It doesn’t matter where you start, it matters how you end

If you want to succeed, double your failure rate.

Everything you want is on the other side of fear

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

We learn more from failure than we do from success.

Start, struggle, fail, fix and learn. Repeat.

The boxer is not afraid of being knocked down, he is afraid of not being able to get up again.

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

He who has begun his task is half-way done. Have the courage to begin!

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

Life is full of opportunities. With every opportunity that is missed, another one is born.