Napoleon Hill: "Effort only fully releases its reward after a person refuses to quit."

The secret to success is to know something nobody else knows.

It doesn’t really matter who you used to be, what matters is who you've become.

Never let your dreams become wasted on another person’s promise.

A lot of people give up too easily. You are closest to your victory when you face the greatest opposition.

Your habits will take you further than your intentions.