Talcott Parsons

Morality arose largely as an empirical defence of the individual and society. Ever since intelligent beings began to be in contact, and consequently in friction, they have felt the need to guard themselves against each other's encroachments.

I do like the zombie movies quite a bit. I know there are purist zombie guys that don't like the running zombies, but I dig the infected thing. I think that's a scarier incorporation of an element into the genre.