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

You cannot escape the responsibility of tomorrow by evading it today

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

Time is your friend, impulse is your enemy.

If you really want something you’ll find a way. If you don’t you’ll find an excuse.

Hard work beats talent when talent doesn't work hard.

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

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.

Don't be afraid to take an unfamiliar path.  Sometimes they're the ones that lead you to the best places.

There is no elevator to success, you have to take the stairs.

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

I had no time is no excuse. 1 hour is 4% of your day and 1 minute is 0.34 % of your day.

We learn more from failure than we do from success.

We are all maths people : step 1 - do maths and step 2 - be a person. 

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