CHAPTER I—MINES AND MINERSHuman societies all have what is called in theatrical parlance, a third lower floor. The social soil is everywhere undermined, sometimes for good, sometimes for evil. These works are superposed one upon the other. There are superior mines and inferior mines. There is a top and a bottom in this obscure sub-soil, which sometimes gives way beneath civilization, and which our indifference and heedlessness trample under foot. The Encyclopedia, in the last century, was a mine that was almost open to the sky. The shades, those sombre hatchers of primitive Christianity, only awaited an opportunity to bring about an explosion under the Cæsars and to inundate the human race with light. For in the sacred shadows there lies latent light. Volcanoes are full of a shadow that is
