"I meet many people offended by evolution, who passionately prefer to be the personal handicraft of God than to arise by blind physical and chemical forces over aeons from slime. They also tend to be less than assiduous in exposing themselves to the evidence. Evidence has little to do with it: what they wish to be true, they believe is true.… The clearest evidence of our evolution can be found in our genes. But evolution is still being fought, ironically by those whose own DNA proclaims it—in the schools, in the courts, in textbook publishing houses, and on the question of just how much pain we can inflict on other animals without crossing some ethical threshold."