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

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

It doesn’t matter where you start, it matters how you end

Work on your weaknesses until they are your strengths and work on your strengths until they are second nature.

The boxer is not afraid of being knocked down, he is afraid of not being able to get up again.

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

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

Twenty years from now you will be more disappointed by the things you didn’t do than the things you did do

The journey of a thousand miles begins with one step. 

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

Fall down seven times, stand up eight.

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

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

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

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