All this must begin with an apology and not an apologia. When I went wandering about the States disguised as a lecturer, I was well aware that I was not sufficiently well disguised to be a spy. I was even in the worst possible position to be a sight-seer. A lecturer to American audiences can hardly be in the holiday mood of a sight-seer. It is rather the audience that is sight-seeing; even if it is seeing a rather melancholy sight. Some say that people come to see the lecturer and not to hear him; in which case it seems rather a pity that he should disturb and distress their minds with a lecture. He might merely display himself on a stand or platform for a stipulated sum; or be exhibited like a monster in a menagerie. The circus elephant is not expected to make a speech. But it is equally true that the circus elephant is not allowed to write a book.