Whenever you find yourself doubting how far you can go, just remember how far you have come.

Try and do one thing each day that you would really rather not do.

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

Your limitation - its only your imagination.

The easiest person to deceive is yourself.

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

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

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

Everything you want is on the other side of fear

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

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.

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

Time is your friend, impulse is your enemy.

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