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

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

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

Time is your friend, impulse is your enemy.

Don't be afraid to take an unfamiliar path.  Sometimes they're the ones that lead you to the best places.

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. 

Success is not final, failure is not fatal.  It is the courage to continue that counts.

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

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

There are no bad mistakes in maths, only discoveries.

Success can never happen without the journey (struggle).

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

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

You cannot escape the responsibility of tomorrow by evading it today

Failure is NOT your destiny. Failure is the key to success.