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

You can hire a tutor but you can't hire someone to practice for you.

The greatest enemy to human potential is your comfort zone

You can pick up a mistake and carry it as a burden,  or you can set it down as use it as a stepping stone to greatness.

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

It is never too late to become what you might have been

The wise person knows that no answer is also an answer

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

When you make a mistake, take another chance. Only when you choose not to do so do you fail.

There are no bad mistakes in maths, only discoveries.

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

Good mathematics is not about how many answers you know... It is about how you behave when you don't know.

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

Run in the morning before your body figures out what you're doing

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