Protecting Americans from harm goes beyond police and national defense. It's imperative that we not destroy the commons, the physical environment on which we rely.

When I turned 50, something clicked in my head and I said, 'I'm not going to live to 100. I'm half-cooked already.' I set the family down and I said, 'Listen everybody, we're now entering the decade of Daddy. We're going to start doing things that I want to do.

There are a lot of impractical things about owning a Porsche. But they're all offset by the driving experience. It really is unique. Lamborghinis and Ferraris come close. And they are more powerful, but they don't handle like a Porsche.

I have had some great successes and great failures. I think every entrepreneur has. I try to learn from all of them.

Many blue-collar families struggling to pay rent would be happy to skip paying optional union dues.

The only reason to do business is to make money; that's the only reason for doing business.

The biggest mistake entrepreneurs can make is trying to do everything themselves. They usually blow up when they try. I did an inventory of every deal I've ever done and it turned out that every single deal I made money on was a partnership, and every colossal failure, where I lost millions, was something I tried to do by myself.