Diversification is protection against ignorance. It makes little sense if you know what you are doing.
Warren BuffettIf you own the only newspaper in town, up until the last five years or so, you have pricing power and you didn't have to go to the office.
Warren BuffettTake Wrigley's Chewing Gum. I don't think the Internet is going to change how people chew gum.
Warren Buffett