Sidonia had exhausted all the sources of human knowledge; he was master of the learning of every nation, of all tongues dead or living, of every literature, Western and Oriental. He had pursued the speculations of science to their last term, and had himself illustrated them by observation and experiment. He had lived in all orders of society, had viewed every combination of Nature and of Art, and had observed man under every phasis of civilisation. He had even studied him in the wilderness. The influence of creeds and laws, manners, customs, traditions, in all their diversities, had been subjected to his personal scrutiny. He brought to the study of this vast aggregate of knowledge a penetrative intellect that, matured by long meditation, and assisted by that absolute freedom from prejudice, which, was the compensatory possession of a man without a country, permitted Sidonia to fathom, as it were by intuition, the depth of questions apparently the most difficult and profound. He possessed the rare faculty of communicating with precision ideas the most abstruse, and in general a power of expression which arrests and satisfies attention. With all this knowledge, which no one knew more to prize, with boundless wealth, and with an athletic frame, which sickness had never tried, and which had avoided excess, Sidonia nevertheless looked upon life with a glance rather of curiosity than content. His religion walled him out from the pursuits of a citizen; his riches deprived him of the stimulating anxieties of a man. He perceived himself a lone being, alike without cares and without duties. To a man in his position there might yet seem one unfailing source of felicity and joy; independent of creed, independent of country, independent even of character. He might have discovered that perpetual spring of happiness in the sensibility of the heart. But this was a sealed fountain to Sidonia. In his organisation there was a peculiarity, perhaps a great deficiency. He was a man without affections. It would be harsh to say he had no heart, for he was susceptible of deep emotions, but not for individuals. He was capable of rebuilding a town that was burned down; of restoring a colony that had been destroyed by some awful visitation of Nature; of redeeming to liberty a horde of captives; and of doing these great acts in secret; for, void of all self-love, public approbation was worthless to him; but the individual never touched him. Woman was to him a toy, man a machine.