Entrepreneurs must be practical experts. They needn't set out to be subject matter experts in what they do; they must set out to solve a problem or pursue some cause or purpose greater than themselves.
If we care about the average working American, then Wal-Mart matters. A lot.
Money is a short-term result that incentivizes short-term decision making.
The cost of leadership is self-interest.
I love science fiction - always have.
Believing that your competition is stronger and better than you pushes you to better yourselves.