Tomorrow is worth more than yesterday but less than today.

Hard work beats talent when talent doesn't work hard.

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. 

There are no bad mistakes in maths, only discoveries.

Tough times never last, but tough people do.

Procrastination is the thief of time and the enemy of success.

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

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

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

There are no shortcuts to any place worth going.

Don't put off until tomorrow what you can do today. If today you have no time, it means tomorrow you'll be too tired and the next day you'll be something else.

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

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

Be strong enough to stand alone, smart enough to know when you need help, and brave enough to ask for it.

Failure to prepare = preparing to fail