Describe what makes you successful?

[Vince Beusan]

Napoleon Hill, "Think And Grow Rich" was a profound book that help change the set of my sail.   Just as a ship can change course with the wind, you can change the direction of your life by the setting of your sail.

In it, he has analyzed and carefully interviewed over (500) financially successful people over many years to compile information for the secret to their success.   

If you have read it great, if you have not, no problem there are many other great books having been written on the subject that has helped 'change the set of your sail'.  I am curious as to the variety of answers that will be written and collected when one describes:  

What was the book that "changed the set of your sail?"

& "What makes you successful?"