The other condition found its fulfilment through the knowledge I derived from her of the methods of the physiologists. That savages, sorcerers, brigands, religious fanatics, and corrupt priesthoods had always been wont to make torture their gain or their pastime, I was well aware, and believed that evolution would sweep them and their practices away in its course. But the discovery now first made to me that identical barbarities are systematically perpetrated by the leaders of modern science on the pretext of benefiting humanity, in an age which claims to represent the summit of such evolution as has yet been accomplished; and that after all its boasts, the best that science can do for the world is to convert it into a hell and its population into fiends, by the deliberate renunciation of the distinctive sentiments of humanity,--this was a discovery which filled me with unspeakable horror and amazement, at once raising to a white heat the enthusiasm of love for the ideal already kindled within me, and adding to it a like enthusiasm of detestation for its opposite. From which it came that I found myself under the impulsion simultaneously of two mighty influences, the one attracting, the other repelling, but both operating in the same direction. For while by the former I was drawn upwards by the beauty of an ideal indefinitely enhanced by its contrast with the foul actual below, by the latter I was impelled upwards by the hideousness of that actual. The sight of the moral abyss disclosed to me in Vivisection, as I perused volume after volume of the annals of the practice written by the perpetrators themselves, and now first made accessible to me, effectually purged out of my system any particle of dilettanteism that might have still lurked in it, compelling me to regard as of the utmost urgency all and more than all that I had hitherto contemplated doing deliberately.