And I applied Warren Buffett???s famous dictum???Don???t buy something you don???t understand???to my trading, so I bought, in our Merrill Lynch account, such companies as Johnson & Johnson and Procter & Gamble and Illinois Tool Works and Caterpillar, and these have been kind to us, until now. (I also bought the Internet company Ariba, because I heard about it from a guy who heard about it from a