This week an IB spokeswoman said: "On reflection, Mr Beard thinks that he could have been more explicit about the sources and authors that inspired him for the content of this speech."She said he had drawn from "a number of sources", including Sir Ken Robinson, but "it was never Mr Beard's intent to imply that the ideas were his alone"."If this had not been a speech, but a scholarly or academic paper, he would have made a complete list of all references available," she said.The Chautauqua Institution was not impressed and has withdrawn the speech from its website and bookshop. Its statement ends: "Mr Beard's behavior in this matter is not characteristic of the work done here at Chautauqua and violates the expectations you should have for that work. We acknowledge to you our genuine disappointment in this event."