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

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

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. 

There are no bad mistakes in maths, only discoveries.

Failure to prepare = preparing to fail

Time is your friend, impulse is your enemy.

Don’t hang your targets after you’re done shooting.

Good mathematics is not about how many answers you know... It is about how you behave when you don't know.

Mistakes have the power to turn you into something better than you were before.

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

Tomorrow is worth more than yesterday but less than today.

There is no talent here. There is hard work and obsession. You could be anyone if you put in the time.

There are no shortcuts to any place worth going.

Your attitude is everything. Pick a good one.

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