But we will never allow Berkshire to become some monolith that is overrun with committees, budget presentations and multiple layers of management. Instead, we plan to operate as a collection of separately-managed medium-sized and large businesses, most of whose decision-making occurs at the operating level. Charlie and I will limit ourselves to allocating capital, controlling enterprise risk, choosing managers and setting their compensation.

From this irritating reality comes The First Law of Corporate Survival for ambitious CEOs who pile on leverage and run large and unfathomable derivatives books: Modest incompetence simply won’t do; it’s mindboggling screw-ups that are required.

Over the years, Charlie [Munger, Berkshire Hathaway Vice Chairman] and I have observed many accounting-based frauds of staggering size. Few of the perpetrators have been punished; many have not even been censured. It has been far safer to steal large sums with pen than small sums with a gun.

"During 1983 our book value increased from $737.43 per share to $975.83 per share, or by 32%. We never take the one-year figure very seriously. After all, why should the time required for a planet to circle the sun synchronize precisely with the time required for business actions to pay off? Instead, we recommend not less than a five-year test as a rough yardstick of economic performance. Red lights should start flashing if the five-year average annual gain falls much below the return on equity earned over the period by American industry in aggregate. (Watch out for our explanation if that occurs as Goethe observed, “When ideas fail, words come in very handy.")