Then if it should turn out one day that we were able to put an end to the body's needs so that it no longer had any, and we could do this without silver, gold, and other things of that kind which we don't actually use for the body (in the way that we use food, drink, clothing, blankets and houses), then it would appear that silver, gold, and other such things wouldn't even be useful to us for this particular purpose, provided that the body's needs can one day be removed without using them.'