Clayton M. Christensen over at the Harvard Business Review muses on life, purpose and defining the right long term metric for measuring success:
I’ve concluded that the metric by which God will assess my life isn’t dollars but the individual people whose lives I’ve touched. Don’t worry about the level of individual prominence you have achieved; worry about the individuals you have helped become better people. This is my final recommendation: Think about the metric by which your life will be judged, and make a resolution to live every day so that in the end, your life will be judged a success.
Full text here.