Life is full of opportunities. With every opportunity that is missed, another one is born.

There are no bad mistakes in maths, only discoveries.

The bad news is time flies, the good new is that you're the pilot.

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

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

Failure to prepare = preparing to fail

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

The greatest mistake we make is living in constant fear that we will make one.

Be strong enough to stand alone, smart enough to know when you need help, and brave enough to ask for it.

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

Try and do one thing each day that you would really rather not do.

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

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

We learn more from failure than we do from success.

Success is a journey, not a destination.