Be strong enough to stand alone, smart enough to know when you need help, and brave enough to ask for it.

There are no bad mistakes in maths, only discoveries.

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.

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

We all make mistakes. What matters is how we choose to move forwards from them.

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

Everything you want is on the other side of fear

The journey of a thousand miles begins with one step. 

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

Skills are built not born.

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

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

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

Tomorrow is worth more than yesterday but less than today.

99% of genius comes from hard work, the remaining 1% comes from innate talent