Business is war. I go out there, I want to kill the competitors. I want to make their lives miserable. I want to steal their market share. I want them to fear me and I want everyone on my team thinking we're going to win.

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.

Nobody forces you to work at Wal-Mart. Start your own business! Sell something to Wal-Mart!

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

I'm not trying to make friends, I'm trying to make money.

As far as I'm concerned, Twitter has wiped out Facebook. I'm done with Facebook.

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