Knapsack of the Metaphysicians.- Those who boast so mightily of the scientificality of their metaphysics should receive no answer; it is enough to pluck at the bundle which, with a certain degree of embarrassment, they keep concealed behind their back; if one succeeds in opening it, the products of that scientificality come to light, attended by their blushes: a dear little Lord God, a nice little immortality, perhaps a certain quantity of spiritualism, and in any event a whole tangled heap of 'wretched poor sinner' and Pharisee arrogance.