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

The greatest enemy to human potential is your comfort zone

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.

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. 

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

Tough times never last, but tough people do.

You can pick up a mistake and carry it as a burden,  or you can set it down as use it as a stepping stone to greatness.

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

Mistakes have the power to turn you into something better than you were before.

I had no time is no excuse. 1 hour is 4% of your day and 1 minute is 0.34 % of your day.

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

You can have results or excuses, not both

We learn more from failure than we do from success.

Your limitation - its only your imagination.