18-40-60 Theory

In a meeting last night someone shared a pearl of wisdom – the 18-40-60 theory.
When you’re 18, you worry about what everybody is thinking of you; 
when you turn 40, you decide that you no longer give a darn about what anyone else thinks;
when you turn 60, you realize nobody has been thinking about you at all.
Don’t wait to turn 60.  Do your thing!