I think, therefore I am.

We learn more from failure than we do from success.

Whenever you find yourself doubting how far you can go, just remember how far you have come.

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

I can is 100 times more important than IQ.

We all have two lives. The second begins when we realise we only have one. 

Hard work always pays off - it is not a question of if you will get there, but WHEN you will get there

Success can never happen without the journey (struggle).

A hero is no braver than an ordinary man, but he is braver five minutes longer.

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

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

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. 

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

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

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