"By far the most effective, hygienic, and also the 'neatest' way of disposing of... [our] physical remains is by cremation. ...Burial in Mother Earth.. is most unhygienic because so many deaths are caused by infectious diseases, and in burying these corpses the soil becomes contaminated by the causal germs and viruses, which may remain contagious for many years. Thus the burial of millions of the infected corpses has contaminated large parts of the Earth's surface."