If there's one thing we can safely say about the billboard advertising an open day at King's School on February 25 it's that you don't need a private school education to be able to understand it.
The billboard shows a boy in King's uniform holding the world in the palm of his hand. "Come to King's," it says, "and you will control the world." My education was very different from what you get at King's. This might leave me open to charges of sour grapes, but I prefer to think of it as objectivity.
The school must turn out some fine young people - statistically that must be the case. After all, some people finish their prison sentences having reformed.
The message of the billboard is that if you go to King's you will be able to do anything. It's often said we should teach our children they can do anything.
That is not true of course - young people's ability has a lot to do with what they can achieve. Hence a lot of modern education's emphasis is on helping people achieve their potential. Kids who are expected to be able to do anything and know they can't often find that stress too much to bear.