I look at Twitter as brand building.

I have no baggage in politics. I've never been a politician. I don't owe anybody anything.

Once in a while, I see my fellow TV investors praise a business just because they like the entrepreneur behind it. That kind of thinking might make you feel warm and fuzzy inside - but let's get back to reality.

We need physical exercise to prepare our brain for long periods of concentration

I keep anywhere between 5-10 percent of my net worth in venture ideas.

You may lose your wife, you may lose your dog, your mother may hate you. None of those things matter. What matters is that you achieve success and become free. Then you can do whatever you like.

Money has no grey areas. You either make it or you lose it.