Dreams don't work unless you do.

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

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

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

I think, therefore I am.

I can is 100 times more important than IQ.

There are no bad mistakes in maths, only discoveries.

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

A book a day keeps the stupidity away.

A hero is no braver than an ordinary man, but he is braver five minutes longer.

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

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.

Knowledge is of no value unless you put it into practice.

Work ethic is important, because, unlike intelligence, athleticism, or charisma, or any natural attribute, it’s a choice.

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