Senior correspondent Katie Kerwin asks Bill Pulte: What's the one thing you wish you'd known before you started building homes in 1950, after finishing high school?
"I wish I had known more about business and finance. I was always good at arithmetic, but there's a big difference between arithmetic and finance. I thought two plus two equaled four, until I met finance people. They looked at two plus two and said: 'What do you want it to be?' " -- Bill Pulte, chairman and founder of Pulte Homes, based in Bloomfield Hills, Mich.