If you can understand just one thing thoroughly, then you will understand everything.

The greatest enemy to human potential is your comfort zone

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

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

1.00³⁶⁵=1 and 1.01³⁶⁵=37.7. Doing nothing at all versus small steps at a time. 

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

He who has begun his task is half-way done. Have the courage to begin!

I can is 100 times more important than IQ.

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

We all make mistakes. What matters is how we choose to move forwards from them.

Run in the morning before your body figures out what you're doing

If you want to succeed, double your failure rate.

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

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.

Hard work - a two way street where you get exactly what you put in.