"Most of the objections [to vaccines]... are based unconsciously on a feeling that there should be higher methods of controlling diseases in man, than by injecting into the human body substance taken from the bodies of animals. That is most surely and definitely correct, and some day it will be demonstrated. Another reaction on their part is one of sensitive disgust, again largely unrecognised. A more vital objection should be based on the suffering entailed on the animals providing the vaccine and other substances."