I look at Twitter as brand building.

Building fast-growing, globally competitive companies is tough.

If you put Canada into $1.5 trillion in debt and interest rates go up just 200 basis points, you cannot provide the services to 36 million people that were guaranteed to them in the social contract they have with Canada. That's a very, very scary prospect. You can't burden this economy with that much debt. The risk you take on is insurmountable. You have to assume for the next 50 years that rates don't go up? That's insane. That's irresponsible. That's stupid.

Money equals freedom.

For whatever reason somebody can be convinced to buy a PC, it opens up a whole new market for all of us in the software 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.

If I were the president of the United States, I would make unions illegal. They no longer serve a functional purpose in democracy, in my view.