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

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

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

There are no shortcuts to any place worth going.

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

You're not in competition with anyone but yourself. Outdo your past, not other people.

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

Don’t confuse your path with your destination. Just because its stormy now doesn’t mean you are headed for failure.

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

Time is your friend, impulse is your enemy.

Each day is an opportunity to improve. Aim to be that little bit better than yesterday and better tomorrow than today.

If you want to succeed, double your failure rate.

Twenty years from now you will be more disappointed by the things you didn’t do than the things you did do

Everything that happens was once a dream.

Failure is not the opposite of success, it is part of the success.