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

Everything you want is on the other side of fear

The greatest enemy to human potential is your comfort zone

Time is your friend, impulse is your enemy.

I fear not the man who has practiced 10,000 kicks once, but I fear the man who has practiced one kick 10,000 times.

It is never too late to turn an unproductive day into a productive one.

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. 

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

Tough times never last, but tough people do.

Knowledge is of no value unless you put it into practice.

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

I can is 100 times more important than IQ.

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

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