Judged from the standpoint of the theory of descent, individuation shows the continuous breaking up of one into two, and the equally continuous annihilation of individuals for the sake of a few individuals, which evolution bears onwards; the greater mass always perishes ("the body").
The fundamental phenomena: innumerable individuals are sacrificed for the sake of a few, in order to make the few possible.—One must not allow one's self to be deceived; the case is the same with peoples and races: they produce the "body" for the generation of isolated and valuable individuals, who continue the great process.
680.
I am opposed to the theory that the individual studies the interests of the species, or of posterity, at the cost of his own advantage: all this is only apparent.
The excessive importance which he attaches to the sexual instinct is not the result of the latter's importance to the species, for procreation is the actual performance of the individual, it is his greatest interest, and therefore it is his highest expression of power (not judged from the standpoint of consciousness, but from the very centre of the individual).
681.
The fundamental errors of the biologists who have lived hitherto: it is not a matter of the species, but of rearing stronger individuals (the many are only a means).
Life is not the continuous adjustment of internal relations to external relations, but will to power, which, proceeding from inside, subjugates and incorporates an ever-increasing quantity of "external" phenomena.
These biologists continue the moral valuations ("the absolutely higher worth of Altruism," the antagonism towards the lust of dominion, towards war, towards all that which is not useful, and towards all order of rank and of class).
682.