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.

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

You're not in competition with anyone but yourself. Outdo your past, not other people.

No matter how bad it gets, you’re still way ahead of those who haven’t even started.

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

Don’t practice until you get it right, practice until you can’t get it wrong.

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

The easiest person to deceive is yourself.

Nobody said it’d be easy, they just promised it would be worth it.

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

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

Never underestimate the importance of small steps. small steps = big changes. 

Fall down seven times, stand up eight.

Your limitation - its only your imagination.

The gift of imperfection - let go of who you think you're supposed to be and embrace who you are.