""To which god must I sacrifice in order to heal?" To which of the warring serpents should I turn with the problem that now faces me? It is easy, and tempting, to choose the god of Science. Now I would not for a moment have you suppose that I am one of those idiots who scorns Science, merely because it is always twisting and turning, and sometimes shedding its skin, like the serpent that is its symbol. It is a powerful god indeed but it is what the students of ancient gods called a shape-shifter, and sometimes a trickster."