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.

Everything you want is on the other side of fear

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

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

Dreams don't work unless you do.

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

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

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

The master has failed more times than the beginner has even tried

There are no bad mistakes in maths, only discoveries.

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

No matter how bad it gets, you’re still way ahead of those who haven’t even started.

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

Hard work always pays off - it is not a question of if you will get there, but WHEN you will get there

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