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. 

If you fail, next time fail better.

We all make mistakes. What matters is how we choose to move forwards from them.

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

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

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

When you make a mistake, take another chance. Only when you choose not to do so do you fail.

You're not in competition with anyone but yourself. Outdo your past, not other people.

Success is a journey, not a destination.

Don't fear failure, fear being in the same exact same place next year as you are now.

Failure to prepare = preparing to fail

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

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.

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

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