I can is 100 times more important than IQ.

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

I think, therefore I am.

Don't put off until tomorrow what you can do today. If today you have no time, it means tomorrow you'll be too tired and the next day you'll be something else.

The bad news is time flies, the good new is that you're the pilot.

Lose an hour in the morning and you will spend all day looking for it.

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

He who has begun his task is half-way done. Have the courage to begin!

It doesn’t matter where you start, it matters how you end

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

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

Practice like you’ve never won. Perform like you’ve never lost.

It always seems impossible until it's done.

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

Tough times never last, but tough people do.