The typical imperative from biology is not "Thou shalt... ," but "If ... then ... else.

Paris Hilton, it turns out, is related to fellow celebrity jailbirds Zsa Zsa Gabor and G. Gordon Liddy.

As technology accumulates and people in more parts of the planet become interdependent, the hatred between them tends to decrease, for the simple reason that you can't kill someone and trade with him too.

If the cartoon were completely accurate, though, life would be a cacophany of spoinks.

My opinions about human nature are shared by many psychologists, linguists, and biologists, not to mention philosophers and scholars going back centuries.

There's guilt about our treatment of native peoples in modern intellectual life, and an unwillingness to acknowledge there could be anything good about Western culture.

America had, for one thing, lived in anarchy for - until much more recently than Europe. We had the Wild West, where the cliche of the cowboy movies was the nearest sheriff is 90 miles away, and so you had to pack a gun and defend yourself.