Dr. Charles Mayo (1961): "I abhor vivisection. It should at least be curbed. Better, it should be abolished. I know of no achievement through vivisection, no scientific discovery, that could not have been obtained without such barbarism and cruelty. The whole thing is evil." (Dr. Charles Mayo, 1961)  ...  “How fortunate we didn’t have these animal tests in the 1940s, for penicillin would probably never been granted a license, and possibly the whole field of antibiotics might never have been realized.” -- Alexander Fleming, 1945 Nobel Prize winner "for the discovery of penicillin and its curative effect in various infectious diseases" ... "Whoever doesn't hesitate to vivisect will hardly hesitate to lie about it."  (-George Bernard Shaw) ... "The genetically engineered monkey experiments now underway at Oregon Health Sciences University bear as much resemblance to bona fide medical research as a circus sideshow does to a legitimate museum." Dr. Neal Barnard (2001) ...  Dr. Albert Schweitzer: "Anyone who has accustomed himself to regard the life of any living creature as worthless is in danger of arriving also at the idea of worthless human lives."  ...  "... animal model systems ... kill humans" (Dr. Irwin Bross, former Director - Cancer Research)  ... "There are, in fact, only two categories of doctors and scientists who are not opposed to vivisection: those who don’t know enough about it, and those who make money from it."  (-Dr. Werner Hartinger, M.D.)  ...  "For the medical profession vivisection has been a curse, as well as a hindrance instead of an aid towards increasing our knowledge."  (Dr. John Bowie)  ...  "… experiments on living animals are leading medicine further and further from the real cure of the patient…" (-H. Fergie Woods, M.D.) ...