To be a king and wear a crown is a thing more glorious to them that see it than it is pleasant to them that bear it.
I like Dr. Daniel Amen's 18
40
60 Rule: When you're 18, you worry about what everybody is thinking of you; when you're 40, you don't give a darn what anybody thinks of you; when you're 60, you realize nobody's been thinking about you at all.