That, finally, ethical naturalism is also wanting in an objective end of moral action, in the idea and meaning of the _highest good_, is indeed not denied by naturalism itself. It is true it speaks with predilection of the idea of species, which man is to represent and to realize, and in that respect we can say that the highest good of naturalistic ethologists is the species or the idea of species.[11] But the idea of species is only the empty vessel which first becomes valuable by reason of its contents. Now, if we ask ethical naturalism the properties with which that idea of species is to be endowed, it certainly mentions properties, but those which are too rich; namely, it mentions the idea of all that is good in human life and the forms of human life, _in concreto_, the whole sum of all the conditions and acquisitions of the culture of mankind, art, nature, and science: the comprehensive idea of these acquisitions, the enjoyment of them, the work at them, is the highest good. Now, since no human individual can enjoy them all and work at them all at the same time, every individual, as {384} to disposition, inclination, and circumstances, has to enjoy a part of them, to work at a part of them, and to renounce a part of them. And since each single one of these good things, however valuable to the individual, may be refused to or taken away from him, he has again to learn to be satisfied with that idea of species, however little it is able to offer him, when separated from the empiric possessions of this earthly life. Thus with naturalism the highest good is either mentioned in an abstraction which does not offer us anything, or which, if we ask the meaning of that abstraction, is instantly drawn down into the low sphere and the varied multiformity of empirical and individual life, left to the chance of individual taste, and confounded with that which is connected with the highest good only in the second line and in a derived manner--namely, with the formations and actions of life which strive at and serve the realization of the highest good. Ethical naturalism is not able to produce out of itself an objective highest good which is for each individual alike attractive, rich, and comprehensive.