Focus on progress, not perfection. Practise a little bit every day - little and often  Slow and steady wins the race.

I think, therefore I am.

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

I have not failed, I've just found 10,000 ways that won't work.

Work on your weaknesses until they are your strengths and work on your strengths until they are second nature.

The wise person knows that no answer is also an answer

Try and do one thing each day that you would really rather not do.

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. 

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

Tough times never last, but tough people do.

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

The easiest person to deceive is yourself.

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

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

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