Knowledge is of no value unless you put it into practice.

The greatest enemy to human potential is your comfort zone

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

Procrastination makes easy things hard and hard things harder.

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.

The master has failed more times than the beginner has even tried

There is no elevator to success, you have to take the stairs.

Time is your friend, impulse is your enemy.

Don’t practice until you get it right, practice until you can’t get it wrong.

You cannot escape the responsibility of tomorrow by evading it today

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

It always seems impossible until it's done.

If you really want something you’ll find a way. If you don’t you’ll find an excuse.

Start, struggle, fail, fix and learn. Repeat.