She threw away the key; and woe to the calamitous curiosity that might peer just once through the crack in consciousness and look down, and sense that man rests up on the merciless, the greedy, the insatiable, the murderous, in the indifference of his ignorance--hanging in dreams, as it were upon the back of a tiger. In view of this, whence in all the world comes the urge for truth?