You're not in competition with anyone but yourself. Outdo your past, not other people.

You cannot escape the responsibility of tomorrow by evading it today

The bad news is time flies, the good new is that you're the pilot.

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

Skills are built not born.

There are no shortcuts to any place worth going.

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

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

Failure to prepare = preparing to fail

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

Nothing is impossible if you want it badly enough. Impossible = I'm possible.

I can is 100 times more important than IQ.

MATHS = Mistakes Allow Thinking To Happen

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. 

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