Working lives are for the state to influence. Unemployment makes people unhappy. So does instability.

The pens sharpen – Islamophobia! No such thing. Primitive Middle Eastern religions, and most others, are much the same – Islam, Christianity and Judaism all define themselves through disgust for women's bodies.

The strongest predictor of unhappiness is anyone who has had a mental illness in the last 10 years. It is an even stronger predictor of unhappiness than poverty - which also ranks highly.

My mother begged doctors to end her life. She was beyond the physical ability to swallow enough of the weak morphine pills she had around her. When she knew she was dying I promised to make sure she could go at a time of her choosing, but it was impossible. I couldn't help.

Nothing keeps people together like the exalted conviction that they alone are to be spared that eternal anguish of hell fire to which everyone else will be condemned.

This is indeed a clash of civilisations, not between Islam and Christendom but between reason and superstition.

It is now possible to quantify people's levels of happiness pretty accurately by asking them, by observation, and by measuring electrical activity in the brain, in degrees from terrible pain to sublime joy.