From "The Human Condition: A User's Manual," by Arnold Kunst
Don't go goofy on Keeping Track Of The Bottom Line. There's the story of Pooh Bear counting his pots of honey. "Thirteen, fourteen, fifteen, six-" and all of a sudden Rabbit bursts in and distracts him. Pooh, of course, says, "Oh bother, now I'll have to start counting all over again!" And Rabbit replies, with more wisdom than he probably realizes, "If it's that important, call it twenty; what difference does it make?"
What difference, indeed?! That's the real bottom line. After all, as is true for Pooh so it is true for you and me: life is meant to be lived, not calibrated.