believed three things about older age. First, that it should be dedicated to service, not goofing off. Second, our greatest gift later in life is wisdom, in which learning and thought create a worldview that can enrich others. Third, our natural ability at this point is counsel: mentoring, advising, and teaching others, in a way that does not amass worldly rewards of money, power, or prestige.

From Strength to Strength by Arthur C. Brooks