Today that spirit of illness has caused a material manifestation, for the physicians now declare that at the root of every illness is a germ, a microbe. Every day a new invention brings a new microbe to their eyes. And if a new microbe is discovered every day till the end of the world numberless microbes will be discovered and there will be numberless diseases; in the end it will be difficult to find one man healthy, for there must always be some microbe; if it is not of an old disease, then of a newly discovered one.