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

We learn more from failure than we do from success.

You cannot escape the responsibility of tomorrow by evading it today

There are no bad mistakes in maths, only discoveries.

Hard work - a two way street where you get exactly what you put in.

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.

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

Everything you want is on the other side of fear

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

No one starts out on top. You have to work your way up.

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

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

Dreams don't work unless you do.

Instead of finding reasons why you can't, find reasons why you can.

A book a day keeps the stupidity away.