 analysis |  Ayer, Alfred Jules |  Bradley, Francis Herbert |  cognitivism vs. non-cognitivism, moral |  consequentialism |  consequentialism: rule |  descriptions |  Hobbes, Thomas |  Hume, David |  Hume, David: moral philosophy |  metaethics |  Moore, George Edward |  Moore, George Edward: moral philosophy |  moral anti-realism |  moral epistemology |  moral motivation |  moral non-naturalism |  moral relativism |  moral skepticism |  realism |  Reid, Thomas |  Russell, Bertrand |  Sidgwick, Henry 