It's simple: he failed to refer each pleasure back to his philosophical control network. This is the meaning of choice and avoidance; if he had remembered the Principle Doctrines, it might have prevented some mistakes!
Well put, Joshua . I think that's a great analogy and demonstrates why it's important to decide on a philosophy of life. That way, you have a "North Star" so to speak to guide you. Having a proven, consistent philosophy (say... Epicureanism?
) provides objective criteria against which to weigh your choices and rejections. We don't follow every pleasure willy-nilly! That's where these people who denigrate Epicureanism go wrong.