We all have two lives. The second begins when we realise we only have one. 

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

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

The road to success is like a staircase. If you want to succeed, double your failure rate

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

There are no bad mistakes in maths, only discoveries.

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

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

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

There are no shortcuts to any place worth going.

Failure to prepare = preparing to fail

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

Procrastination is the thief of time and the enemy of success.

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

It is never too late to become what you might have been