The absolutist parades his good solid grounding in observation, reason, objectivity, truth and fact; the relativist sees only fetishes.

This doctrine, that of the ghost in the machine, strictly separates the mind or soul from the body. And by doing so it takes the soul outside the sphere of mechanical or scientific explanation. It splits the world of the mind from the world of science. It is often supposed to protect our cherished free will.

People who have cut their teeth on philosophical problems of rationality, knowledge, perception, free will and other minds are well placed to think better about problems of evidence, decision making, responsibility and ethics that life throws up.

The absolutist takes himself to read nature in her very own language, but the relativist insists that nature does not speak, and we hear only what we have elected to hear.

It is sometimes said that one of the casualties of the general suspicion and mistrust that permeated the old Soviet Union was that the distinction between truth and other motivations to believe tended to break down. Upon hearing a purported piece of information, the reaction was not 'Is this true?' but 'Why is this person saying this? - What machinations or manipulations are going on here?' The question of truth did not, as it were, have the social space in which it could breath.

The absolutist lays down the law, but the relativist hears only roaring and bawling. Or, when the relativist voice, as it is heard from philosophers such as Nietzsche or James, itself starts to grate and sounds shrill, as it often does, and when the relativist then offers concessions, the absolutist hears only insincerity. The war of words can often turn into a dialogue of the deaf, and this too if part of its power to arouse outrage and fury.

The gods we make in our own image are tribal gods. They tell you how very, very little you should tolerate outsiders, who are less favoured of the Lord. Amazingly, there are no recorded cases of the holy man going up the mountain and finding that it's the others who are right. It always turns out that God wants unbelievers to suffer, and what could be more noble than to help him a little? When religion rules, toleration disappears, for you cannot cherish the verdict of death to the infidels, yet also tolerate those who disagree - for those are the very same infidels.