Ultimately, my Ph.D. is in mathematical physics, focusing on quantum field theory and curved space-time, and I worked with Stephen Hawking.

The physics of water is central to cooking, because food is mostly water. All steak that you cook is actually boiled on the inside.

The reason societies with democratic governments are better places to live in than their alternatives isn't because of some goodness intrinsic to democracy, but because its hopeless inefficiency helps blunt the basic potential for evil.

I've been on a team that won the world championship of barbecue. But barbecue's interesting, because it's one of these cult foods like chili, or bouillabaisse. Various parts of the world will have a cult food that people get enormously attached to - there's tremendous traditions; there's secrecy.

Business is war! Its leaders are strategic commanders, who boldly snatch victory from the jaws of defeat - and who perform other acts of derring-do. This kind of talk sounds great in the boardroom, and, for that matter, in the bookstore, where dozens of authors counsel would-be corporate warriors.

Elections, for their part, are typically popularity contests rather than measures of candidates' relative competency or effectiveness. Imagine if scientific truth were determined according to which scientist was most popular. To be successful, scientists would have to be charismatic and attractive - and human knowledge would suffer terribly.

Anybody who can afford a box of business cards can afford a Web site. Any company with an 800 number can move its services to the Web for peanuts by comparison. The extreme case of corporate promotion is to strip away all other aspects of your business and sell goods or services via the Net alone, as amazon.com has done with books.