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

It is never too late to turn an unproductive day into a productive one.

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

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

I have not failed, I've just found 10,000 ways that won't work.

Time is your friend, impulse is your enemy.

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

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

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

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

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

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

Fall down seven times, stand up eight.

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

Do what you have always done and you will always be what you have always been