"Through the years, I have greatly feared and sought to keep at bay the four beasts that inevitably devour their keeper -- Ego, Envy, Avarice, and Ambition. In 1984, I severed all connections with business for a life of isolation and anonymity, convinced I was making a great bargain by trading money for time, position for liberty, and ego for contentment -- that the beasts were securely caged.'"

Not a bad bargain is it. The knack is to get the unit of the trade in as much quantity as possible to buy out the beasts depending on how much each of them is plaguing you.