The second quite devastating problem for materialism consists in the idea that materialism itself is not material. Materialism is a theory according to which everything consists of material objects (elementary particles or whatever) without exception. If this were true, then the truth of the theory of materialism would also be a configuration of elementary particles, manifest, for example, in the form of neural states of the brain of the materialist. Certainly, for an idea to be true, it is not sufficient that it is a brain state.