Ineluctably, the insults inflicted in one war call forth new wars of retaliation, which may be waged within months of the original conflict or generations later.

Marriage probably originated as a straightforward food-for-sex deal among foraging primates. Compatibility was not a big issue, nor, of course, was there any tension over who would control the remote.

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.

... there hasn't been a serious life-style trend since the couch potato was sighted, in about 1986, on one of its rare forays to the video store. Cocooning remains a significant mass enterprise, encouraged by the availability of five hundred new cable channels and microwavable popcorn.

The failure to think positively can weigh on a cancer patient like a second disease.

a great deal of the wealth at the top is built on the low-wage labor of the poor. Take Wal-Mart, our largest private employer and premiere exploiter of the working class. ... You think it's a coincidence that this union-busting low-wage retail empire happens to have generated a $65 billion family fortune?

For a long time on Earth humans didn't worship good gods; that's a new idea. The ancient Greek gods, the Hindu gods, are fairly amoral, most of them. We get stuck when we insist that God be both good and all-powerful.