Now that both the obsequies and the ritual condemnations of Margaret Thatcher are over, the time has begun for a more analytical look at her legacy. I am not a bad person to start this off as I was neither a passionate anti-Thatcherite nor regarded by her inner circle as “really one of us”.

A point that has been missed in all the verbiage of recent days is how much her thinking owed to Keith Joseph, the Conservative who helped to put the idea of a genuine free market back on the political agenda.

In saying this I am far from trying to detract from her legacy. On the contrary, she often said: “One day people will realise what they owe to Keith Joseph.” Anyone can confirm this by looking at her Joseph Memorial Lecture of 1996 given to the Centre for Policy Studies. The first part of the lecture, on the connection between a free economy and a free society, and the last part, on the perils of the euro currency project, are still fresh and relevant.