Cato senior fellow Tom Palmer is profiled in the Washington Examiner's Sunday "Credo" column. He talks about the meaning of freedom and about people who have risked their lives to protect the rights of others, and offers some interesting thoughts when asked about "moral relativism":
You say that for many people, the idea of right and wrong has been degraded in our culture. Why? When did that happen?
The growth of moral relativism is an interesting thing to chart. Allan Bloom at the University of Chicago argued that it was an unintended consequence of a positive development, which was the integration of different races and religions. As that happened, it became the easiest way to tell schoolchildren not to fight by saying, "Everyone and everything is as good as everything else." It is an easier route to say that there are no moral truths, but the outcome is not more mutual respect. It undermines the foundation of mutual respect.
Moral relativism was a lazy shortcut for a pluralistic society. A better approach is to say you should respect others because they're human beings, and because they have rights.