When we looked at the life cycle in our 40s, we looked to old people for wisdom. At 80, though, we look at other 80-year-olds to see who got wise and who not. Lots of old people don't get wise, but you don't get wise unless you age.

When we looked at the life cycle in our 40s, we looked to old people for wisdom. At 80, though, we look at other 80-year-olds to see who got wise and who not. Lots of old people don't get wise, but you don't get wise unless you age.