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

Failure to prepare = preparing to fail

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

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. 

I can is 100 times more important than IQ.

The greatest mistake we make is living in constant fear that we will make one.

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

Run in the morning before your body figures out what you're doing

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

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

You cannot escape the responsibility of tomorrow by evading it today

Tough times never last, but tough people do.

It is never too late to turn an unproductive day into a productive one.

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

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