As I was posting the previous link, I did a quick search to see if there are any stories of Buffett making bad investments. It just seemed to me that everything he touches turns to gold. Anyway, I ended up on a site with some of his quotes. I really liked this one:
"Somebody once said that in looking for people to hire, you look for three qualities: integrity, intelligence, and energy. And if you don't have the first, the other two will kill you. You think about it; it's true. If you hire somebody without [integrity], you really want them to be dumb and lazy."