I used to define "success" as the ability to produce the results you want.
But lately I've changed my definition of success to this: The ability to express, to fulfill, and to live your life purpose. Because if you're living your purpose, you're going to be successful. Unfortunately, most of us have defined "success" as being famous or being wealthy. And for a lot of us, that's not what we're here to do. We're here to express ourselves fully, and to live a life of purpose.
I believe that everyone has a purpose inside of them, and our job is to discover and fulfill that purpose.