Hard work - a two way street where you get exactly what you put in.

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

Everything you want is on the other side of fear

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. 

Fall down seven times, stand up eight.

You cannot escape the responsibility of tomorrow by evading it today

99% of genius comes from hard work, the remaining 1% comes from innate talent

Procrastination makes easy things hard and hard things harder.

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

The temptation to quit will be the greatest when you are about to succeed

Success is a journey, not a destination.

I can is 100 times more important than IQ.

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

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

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