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

There are no shortcuts to any place worth going.

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

Your limitation - its only your imagination.

Patience is when you’re supposed to get mad, but you choose to understand

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

We are all maths people : step 1 - do maths and step 2 - be a person. 

There is no talent here. There is hard work and obsession. You could be anyone if you put in the time.

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

If you can understand just one thing thoroughly, then you will understand everything.

Dreams don't work unless you do.

In order to become better than anybody else you must first become better than yourself.

Failure to prepare = preparing to fail

Don’t hang your targets after you’re done shooting.

1.00³⁶⁵=1 and 1.01³⁶⁵=37.7. Doing nothing at all versus small steps at a time.