. The tyranny of this idiosyncrasy, however, results in the theory of “adaptation” being pushed forward into the van of the argument, exploited; adaptation⁠—that means to say, a second-class activity, a mere capacity for “reacting”; in fact, life itself has been defined (by Herbert Spencer) as an increasingly effective internal adaptation to external circumstances. This definition, however, fails to realise the real essence of life, its will to power. It fails to appreciate the paramount superiority enjoyed by those plastic forces of spontaneity, aggression, and encroachment with their new interpretations and tendencies, to the operation of which adaptation is only a natural corollary: consequently the sovereign office of the highest functionaries in the organism itself (among which the life-will appears as an active and formative principle) is repudiated. One remembers Huxley’s reproach to Spencer of his “administrative Nihilism”: but it is a case of something much more than “administration.”