Willem Kolff: When the artificial kidney had become in my eyes a reality that did not mean that the medical profession was going to say, “Hurrah! Now we have something!” And, there were some that were receptive, there were many more that thought that the idea to have blood outside somebody’s body was a horrible idea, and they did whatever they could to prevent using the artificial kidney, and some of them wrote articles that said the artificial kidney was not needed. I’ve done one very good thing. I have never responded to any of those articles, for the simple reason that I had seen the improvement in patients so clearly that if I could just keep going, and have a few other people do it too, I would win.