Don’t be afraid to work hard and find out how good you can really be.

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

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

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

You can be shown the path, but only you can make the first step.

Tough times never last, but tough people do.

Failure to prepare = preparing to fail

You cannot escape the responsibility of tomorrow by evading it today

It doesn’t matter where you start, it matters how you end

There is no talent here. There is hard work and obsession. You could be anyone if you put in the time.

Work like you don't need the money, dance like nobody's watching and love like you've never been hurt. 

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

You can pick up a mistake and carry it as a burden,  or you can set it down as use it as a stepping stone to greatness.

Success is a journey, not a destination.

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