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.

One in six people suffer depression or a chronic anxiety disorder. These are not the worried well but those in severe mental pain with conditions crippling enough to prevent them living normal lives.

The best care on earth cannot prevent us all dying in the end.

But how odd that in this heathen nation of empty pews, where churches' bare, ruined choirs are converted into luxury loft living, a Labour government - yes, a Labour government - is deliberately creating a huge expansion of faith schools.

Thresholds of pain, indignity and incapacity are entirely personal.

Happiness is a real, objective phenomenon, scientifically verifiable. That means people and whole societies can now be measured over time and compared accurately with one another. Causes and cures for unhappiness can be quantified.

Inequality makes everyone unhappy, the poor most of all, and that is well within the remit of the state. More money gives less extra happiness the richer we get, yet we are addicted to earning and spending more every year.