Among us, science serves two needs: for hope and censorship. Today, only science supports the myth of progress. If people cling to the hope of progress, it is not so much from genuine belief as from fear of what may come if they give it up. The political projects of the twentieth century have failed, or achieved much less than they promised. At the same time, progress in science is a daily experience, confirmed whenever we buy a new electronic gadget, or take a new drug. Science gives us a sense of progress that ethical and political life cannot. (John Gray, Straw Dogs, p.18-19)