A human lifespan is less than a thousand months long. You need to make some time to think how to live it.

Sensible Catholics have for generations been ignoring the views on contraception held by reactionary old men in the Vatican, but alas, since it is the business of all religious doctrines to keep their votaries in a state of intellectual infancy (how else do they keep absurdities seeming credible?), insufficient numbers of Catholics have been able to be sensible.

Humanism is the philosophy that you should be a good guest at the dinner table of life.

Nowadays, by contrast, Christianity specialises in soft-focus mood music; its threats of hell, its demand for poverty and chastity, its doctrine that only the few will be saved and the many damned, have been shed, replaced by strummed guitars and saccharine smiles. It has reinvented itself so often, and with such breathtaking hypocrisy, in the interests of retaining its hold on the gullible, that a medieval monk who woke today, like Woody Allen's Sleeper, would not be able to recognise the faith that bears the same name as his own.

Religion and science have a common ancestor - ignorance.

Everybody is entitled to believe. Churches have exactly the same right to exist as a football club, a trade union or a political party. But if you and I set up the Church of the Fairies of the Garden, then I don't think we should automatically be meeting the queen, be entitled to seats in the House of Lords or get public money for our fairy schools.

It takes a certain ingenuous faith - but I have it - to believe that people who read and reflect more likely than not come to judge things with liberality and truth.