The idea that the growing demand for energy worldwide can be met with energy from nuclear power is nonsense.

My office has a view of low-cost housing, old East German prefabricated apartment buildings. It isn't an attractive view, but it's very helpful, because it reminds me to ask myself, whenever there is a decision to be made, whether the people who live there can afford our decisions.

Those who reject integration programs in the long term have as little right to stay in Germany as a hate preacher paid from abroad in a mosque.

However, I have a low opinion of people with narrow political horizons. Someone who talks about the environment and knows nothing about economics can make as many mistakes as someone who does the opposite.

Our family's fortune is growing faster than ever. We're a part of a small number of American families that own most of the country's wealth. But having so much in the hands of so few can't be good for America.

That wasn't because of money, it was because I had a job for the next two days and wanted to work. So I faked a test. That was over two years ago. Why has there been no issue about it since then?

It's a great story for us whenever an entrepreneur makes a crazy amount of money and we get to tell the world about it. For the entrepreneur? Not so much. Hitherto unknown relatives, entrepreneurs seeking angel investments, money managers and supposed baby-mamas all come out of the woodwork with dollar signs in their eyes.

I want to make money for third-world-country kids, and I need to be smart about how to do it.