There are two different types of achievements. Regaining muscle strength after recuperation from a broken leg and making the last payment on a thirty-year mortgage are victories with fixed features that allow pride when attained. But the desire to be rich or to have higher status lacks this quality, for there are always others with more wealth or higher status. Hence, many who seek these goals are never satisfied and experience chronic uncertainty instead of pride.

source: Jerome Kagan, An Argument for Mind, 143 tags: Success, Greed, Ambition