Jonathan Haidt is a cultural and social psychologist at the University of Virginia and he wants to explain three key 'facts' about morality. The first is that our moral intuitions come first and our reasoning as to why we hold those moral positions second. We react first, think later (as the eighteenth century philosopher, David Hume, proposed). The second is that there is more to morality than notions of harm and fairness - indeed he offers six patterns of moral intuition on which we weave our moral viewpoints. The four additional ones are liberty, authority, hierarchy and sanctity. The third is that morality both binds groups together and because of this blinds people to a full appreciation of those who lie outside or beyond 'our' group. The book is closely argued, intelligent, and written with clarity and humour. It has a practical purpose too as its subtitle reveals: 'Why good people are divided by politics and religion' (though it has to be said th...