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

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

You cannot escape the responsibility of tomorrow by evading it today

I have not failed, I've just found 10,000 ways that won't work.

There are no bad mistakes in maths, only discoveries.

Each day is an opportunity to improve. Aim to be that little bit better than yesterday and better tomorrow than today.

Success is the sum of small repeated efforts, day in and day out.

The power of reflection is the most powerful skill you’ll learn.

We learn more from failure than we do from success.

Your limitation - its only your imagination.

Your attitude is everything. Pick a good one.

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

It is never too late to become what you might have been

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

Nobody said it’d be easy, they just promised it would be worth it.