Technology, ideology, and social and cultural changes periodically throw out new forms of violence for humanity to contend with.

Evolutionary psychology is one of four sciences that are bringing human nature back into the picture.

Economic libertarians and Christian evangelicals, united by their common enemy, are strange bedfellows in today's Republican party, just as the two Georges - the archconservative Wallace and the uberliberal McGovern - found themselves in the same Democratic Party in 1972.

Dominance in an adaptation to anarchy and it serves no purpose in a society that has undergone a civilising process or in an international system regulated by agreements and norms. Anything that deflates the concept of dominance is likely to drive down the frequency of fights between individuals and wars.

We are visual creatures. Visual things stay put, whereas sounds fade.

Some people believe that the nuclear bomb should be awarded the Nobel Peace Prize, since it scared the major powers away from war by equating it with doomsday.

Disgust is intuitive microbiology