Even when uttered by Democrats, "middle class" often sounds like a mealymouthed way of saying, "Us, and not them," where "them" includes poor people, snake handlers and those with pierced tongues.

our great common challenge ... is to free people from religion, get it out of our laws, our schools, our health systems, our government and, I would add, also our sporting events. I would really like to see some separation of church and stadium, if we could work on that.

At issue is not only knowledge of the world but our survival as individuals and as a species. All the basic technologies ever invented by humans to feed and protect themselves depend on a relentless commitment to hard-nosed empiricism: you cannot assume that your arrowheads will pierce the hide of a bison or that your raft will float just because the omens are propitious and you have been given supernatural reassurance that they will. You have to be sure.

Poverty is not a character failing or a lack of motivation. Poverty is a shortage of money.

In sci-fi convention, life-forms that hadn't developed space travel were mere prehistory -- horse-shoe crabs of the cosmic scene -- and something of the humiliation of being stuck on a provincial planet in a galactic backwater has stayed with me ever since.

A free-enterprise economy depends only on markets, and according to the most advanced mathematical macroeconomic theory, markets depend only on moods: specifically, the mood of the men in the pinstripes, also known as the Boys on the Street. When the Boys are in a good mood, the market thrives; when they get scared or sullen, it is time for each one of us to look into the retail apple business.

Upscale people are fixated with food simply because they are now able to eat so much of it without getting fat, and the reason they don't get fat is that they maintain a profligate level of calorie expenditure. The very same people whose evenings begin with melted goats cheese... get up at dawn to run, break for a mid-morning aerobics class, and watch the evening news while racing on a stationary bicycle.