In 1948, Russell was invited by the BBC to deliver the inaugural Reith Lectures—what was to become an annual series of lectures, still broadcast by the BBC. His series of six broadcasts, titled "Authority and the Individual", explored themes such as the role of individual initiative in the development of a community and the role of state control in a progressive society. Russell continued to write about philosophy. He wrote a foreword to "Words and Things" by Ernest Gellner, which was highly critical of the later thought of Ludwig Wittgenstein and of ordinary language philosophy. Gilbert Ryle refused to have the book reviewed in the philosophical journal "Mind", which caused Russell to respond via "The Times". The result was a month-long correspondence in "The Times" between the supporters and detractors of ordinary language philosophy, which was only ended when the paper published an editorial critical of both sides but agreeing with the opponents of ordinary language philosophy.