"Stressing the practice of living purposefully as essential to fully realized self-esteem is not equivalent to measuring an individual's worth by his or her external achievements. We admire achievements-in ourselves and others-and it is natural and appropriate for us to do so. But that is not the same thing as saying that our achievements are the measure or grounds of our self-esteem. The root of our self-esteem is not our achievements but those internally generated practices that, among other things, make it possible for us to achieve."