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

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

Don't expect to be good at maths or understand things straight away. Be patient and persistent. Rome wasn't built in a day, but they worked on it every single day. 

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

You cannot escape the responsibility of tomorrow by evading it today

I can is 100 times more important than IQ.

Instead of finding reasons why you can't, find reasons why you can.

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

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

We learn more from failure than we do from success.

A hero is no braver than an ordinary man, but he is braver five minutes longer.

A book a day keeps the stupidity away.

The temptation to quit will be the greatest when you are about to succeed

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

Dreams don't work unless you do.