Diderot, a doyen of the French Enlightenment, wrote that the Christian gospel might have been a less gloomy affair if Jesus had fondled the breasts of the bridesmaids at Cana and caressed the buttocks of St John. Yet he, too, believed that religion was essential for social unity. Matthew Arnold feared the spread of godlessness among the Victorian working class. It could be countered, he thought, with a poeticised form of a Christianity in which he himself had long ceased to believe. The 19th-century French philosopher Auguste Comte, an out-and-out materialist, designed an ideal society complete with secular versions of God, priests, sacraments, prayer and feast days.
There is something deeply disingenuous about this whole tradition. “I don't believe myself, but it is politically prudent that you should” is the slogan of thinkers supposedly devoted to the integrity of the intellect. If the Almighty goes out of the window, how are social order and moral self-discipline to be maintained? It took the barefaced audacity of Friedrich Nietzsche to point out that if God was dead, then so was Man – or at least the conception of humanity favoured by the guardians of social order. The problem was not so much that God had inconveniently expired; it was that men and women were cravenly pretending that he was still alive, and thus refusing to revolutionise their idea of themselves.
God may be dead, but Alain de Botton's Religion for Atheists is a sign that the tradition from Voltaire to Arnold lives on. The book assumes that religious beliefs are a lot of nonsense, but that they remain indispensible to civilised existence. One wonders how this impeccably liberal author would react to being told that free speech and civil rights were all bunkum, but that they had their social uses and so shouldn't be knocked. Perhaps he might have the faintest sense of being patronised. De Botton claims that one can be an atheist while still finding religion “sporadically useful, interesting and consoling”, which makes it sound rather like knocking up a bookcase when you are feeling a bit low. Since Christianity requires one, if need be, to lay down one's life for a stranger, he must have a strange idea of consolation. Like many an atheist, his theology is rather conservative and old-fashioned.
De Botton does not want people literally to believe, but he remains a latter-day Matthew Arnold, as his high Victorian language makes plain.