Along with <EM>Why I Am Not a Christian</EM>, this essay must rank as the most articulate example of Russell's famed atheism. It is also one of the most notorious. Used as evidence in a 1940 court case in which Russell was declared unfit to teach college-level philosophy, <EM>What I Believe</EM> was to become one of his most defining works. The ideas contained within were and are controversial, contentious and - to the religious - downright blasphemous. A remarkable work, it remains the best concise introduction to Russell's thought.