Lecture XVIII
Now an obvious error enters this whole point of view, namely, that attention is diverted from the primary element. Suppose that in the course of an illness, bacteria appear in considerable numbers in some bodily area. It is only natural that they should cause symptoms such as are the result of any foreign body in the organism, and that from the presence of these bacteria all manner of inflammations arise. But if all these results are ascribed wholly to the action of the bacteria, attention is actually directed only to the activity of these micro-organisms. Attention is thus drawn away from the true origin of the disease, for whenever lower organisms find suitable soil in the human frame for development, that soil has been made suitable by the real primary causes of the disease. And attention must be directed to the region of these primary causes. We must therefore return to the paths of thought we have already traversed and for a short time give them our attention.