Don’t hang your targets after you’re done shooting.

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

Your limitation - its only your imagination.

It always seems impossible until it's done.

Instead of finding reasons why you can't, find reasons why you can.

Skills are built not born.

Twenty years from now you will be more disappointed by the things you didn’t do than the things you did do

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

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. 

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

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

There are no bad mistakes in maths, only discoveries.

There is no talent here. There is hard work and obsession. You could be anyone if you put in the time.

99% of failures come from people who have the habit of making excuses.