"For" or "Against"

I wrote this to a friend (in email) this morning:

Why is it that we so vehemently oppose people's opinions when they don't match our own?  How does R.A.W. do it: accepting everyone's belief systems and just enjoying the diversity?

Interestingly, this afternoon, the following video was posted on TED, talking about the biological source of morality.



...I vaguely remember posting about a Stephen Pinker article on this subject, but clearly, that lesson was lost on me.

This was quite timely.