I think, therefore I am.

Mathematics Is not a spectator sport. The only way to learn mathematics is to do mathematics.

The journey of a thousand miles begins with one step. 

Pure mathematics is in its way, the poetry of logical ideas.

Success is a journey, not a destination.

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

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

You can be shown the path, but only you can make the first step.

If you fail, next time fail better.

Dreams don't work unless you do.

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

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

Skills are built not born.

Hard work - a two way street where you get exactly what you put in.

Go as far as you can see, when you get there, you’ll be able to see further