Quinn's First Law of Investing is never to buy anything whose price you can't follow in the newspapers. An investment without a public marketplace attracts the fabulists the way picnics attract ants. Stock brokers and financial planners can tell you anything they want, because no one really knows what's true. The First Corollary to Quinn's First Law states that, even when the price is in the newspapers, you shouldn't buy anything too complex to explain to the average 12-year-old.