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

Procrastination is the thief of time and the enemy of success.

No one starts out on top. You have to work your way up.

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

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

There are no shortcuts to any place worth going.

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

There are no bad mistakes in maths, only discoveries.

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. 

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

He who has begun his task is half-way done. Have the courage to begin!

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

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

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

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