Companies fail for lack of brains and effort.

Just watch. Pigs get fat, hogs get slaughtered. When you try to take it too far, people turn the other way. I'm just telling you, when you've got a good thing and you get greedy, it always, always, always, always, always turns on you. That's rule No. 1 of business.

I don't think people realize the risks they face every time they create a text, or post on a social network. Unless you expressly make the effort, everything you do online, including texting, has a shelf life of forever.

My businesses are usually built around challenging conventional wisdom, so I tend to gain by taking the other side. It's been very profitable and entertaining for me

Being a smart shopper is the first step to getting rich.

We can talk about republican or democratic approaches to the economy, but until you fix the student loan bubble - and that's where the real bubble is - and the tuition bubble, we don't have a chance. All this other stuff is shuffling deck-chairs on the Titanic.

I'm not the type to pat myself on the back and all that, but somebody has to be lucky, right? When I got to Dallas, I was struggling - sleeping on the floor with six guys in a three-bedroom apartment. I used to drive around, look at the big houses, and imagine what it would be like to live there and use that as motivation.