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

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

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. 

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

Failure to prepare = preparing to fail

You're not in competition with anyone but yourself. Outdo your past, not other people.

If you fail, next time fail better.

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

I think, therefore I am.

You can pick up a mistake and carry it as a burden,  or you can set it down as use it as a stepping stone to greatness.

The journey of a thousand miles begins with one step.

If you want to succeed, double your failure rate.

It is never too late to turn an unproductive day into a productive one.

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

No matter how bad it gets, you’re still way ahead of those who haven’t even started.