What does success mean to you?

Success in itself doesn`t mean much to me. It usually appears like some external, oftentimes syntetic validation of one´s worth or effort. It has never been my driving force. Success in a whole different light means expansion, growth, improvement, contribution to me. Just like "the new definition of billionaire" - someone who positively affects the lives of a billion people - success and being successful to me means being able to create positive change, to have impact, to move human race forward.