Reality is complex. The most we can hope for in life is partial solutions. And even such partial solutions as that are temporary, and may require irritating compromises. That is why I defined my actions in terms of an operational process, not in terms of an end goal. There is no end. Nothing ever ends. We do what we can when we can. Factors beyond our control-” He made a gesture at the horizon and the sky, a gesture that seemed to encompass the material world, humanity, the stars, the fates, the actions and opinions of other people, all of external reality. "-factors beyond our control...we disregard.