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

The road to success is like a staircase. If you want to succeed, double your failure rate

Time is your friend, impulse is your enemy.

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

Fall down seven times, stand up eight.

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

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

Skills are built not born.

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

You'll never change your life until you change something you do daily. The secret to success and change in found in your daily routine.

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

Failure is not the opposite of success, it is part of the success.

The boxer is not afraid of being knocked down, he is afraid of not being able to get up again.

It is never too late to become what you might have been

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.