"When a wind gathering together from some one quarter through the hollow places beneath the earth throws itself forward, and bears hard, thrusting with great force into the lofty caverns, the earth leans over in the direction of the wind's headlong force. Then those buildings which are built up above the earth, and each all the more, the more they tower up towards heaven, lean suspended, pushing forward in the same direction, and the beams dragged forward hang over ready to go. And yet people fear to believe that this great universe has waiting for it some period of destruction and ruin, although they see the earth's mighty mass leaning over. Yet if the winds should never blow backwards, no force could curb the world back or hold it back in its rush to perdition. As it is, because in turns they do blow back gathering force, and rally as it were and come back, and then are driven back in retreat, for this reason the earth more often threatens to fall than it does fall; for it inclines forward and then again springs back, and brings back its overhanging weights to their proper place. This then is how all buildings totter, the top more than the middle, the middle than the foundation, the foundation the merest trifle."