Thus approaching the facts from a different side, analysis brings us down to another face of that ultimate truth disclosed by analysis in a preceding chapter. We found it was no more possible to frame ethical conceptions from which the consciousness of pleasure, of some kind, at some time, to some being, is absent, than it is possible to frame the conception of an object from which the consciousness of space is absent. And now we see that this necessity of thought originates in the very nature of sentient existence. Sentient existence can evolve only on condition that pleasure-giving acts are life-sustaining acts. § 34. Notwithstanding explanations already made, the naked enunciation of this as an ultimate truth, underlying all estimations of right and wrong, will in many, if not in most, cause astonishment. Having in view certain beneficial results that are preceded by disagreeable states of consciousness, such as those commonly accompanying labor; and having in view the injurious results that follow the receipt of certain gratifications, such as those which excess in drinking produces; the majority tacitly or avowedly believe that the bearing of pains is on the whole beneficial, and that the receipt of pleasures is on the whole detrimental. The exceptions so fill their minds as to exclude the rule. When asked, they are obliged to admit that the pains accompanying wounds, bruises, sprains, are the concomitants of evils, alike to the sufferer and to those around him; and that the anticipations of such pains serve as deterrents from careless or dangerous acts. They cannot deny that the tortures of burning or scalding, and the miseries which intense cold, starvation, and thirst produce, are indissolubly connected with permanent or temporary mischiefs, tending to incapacitate one who bears them for doing things that should be done, either for his own welfare or the welfare of others. The agony of incipient suffocation they are compelled to recognize as a safeguard to life, and must allow that avoidance of it is conducive to all that life can bring or achieve. Nor will they refuse to own that one who is chained in a cold, damp dungeon, in darkness and silence, is injured in health and efficiency, alike by the positive pains thus inflicted on him and by the accompanying negative pains due to absence of light, of freedom, of companionship.