Nothing is impossible if you want it badly enough. Impossible = I'm possible.

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

Don't be afraid to take an unfamiliar path.  Sometimes they're the ones that lead you to the best places.

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

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

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

Tough times never last, but tough people do.

You cannot escape the responsibility of tomorrow by evading it today

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

There are no bad mistakes in maths, only discoveries.

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

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

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

Success is a journey, not a destination.

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