How Strong?

I watched "The Armstrong Lie: The Lance Armstrong Story" last night on Netflix. I knew the story already, but I was in the mood for a dramatic sports documentary. One of the things that will never sit right with me–and I suspect with most people–isn't the doping. After all, doping was rampant at the time and who's to say Armstrong wouldn't have won at least few, if not seven, Tours de France anyway? What bothers me is how thoroughly he seemed to have convinced himself that he was "clean" to the point that he would do (nearly) anything to anyone to silence them. 

This is not a lesson I need to learn, but it's important to recognize that some people, once they taste success, will do everything in their power to hang onto it. We must be prepared for that.