BBC NEWS | UK | Magazine | What is relativism?: “Shortly before he was elected pope, Cardinal Joseph Ratzinger delivered a withering denunciation of relativism. For those unfamiliar with even the blunter points of philosophy, what was he driving at?

Moral relativism is the idea that moral principles have no objective standard, so states its dictionary definition.

In its extreme, the view that there are no hard and fast rules on what is right and wrong, on which values are set and should be fought for.
It is in contrast to absolutism, that there is one truth.”

There’s more to come on this question – I’m working on an essay that responds to the critique that Ratzinger makes. My response comes out of my background as a Physicist who has thought long about the nature of reality and its observation.