most perfectly. A really passionate love is as rare as the accident of these two meeting. Since, however, the possibility of such a love is present in every one, the representations of it in the works of the poets are comprehensible to us. Just because the passion of love really turns about that which is to be produced, and its qualities, and because its kernel lies here, a friendship without any admixture of sexual love can exist between two young and good-looking persons of different sex, on account of the agreement of their disposition, character, and mental tendencies; nay, as regards sexual love there may even be a certain aversion between them. The reason of this is to be sought in the fact that a child produced by them would have physical or mental qualities which were inharmonious; in short, its existence and nature would not answer the ends of the will to live as it exhibits itself in the species. On the other hand, in the case of difference of disposition, character, and mental tendency, and the dislike, nay, enmity, proceeding from this, sexual love may yet arise and exist; when it then blinds us to all that; and if it here leads to marriage it will be a very unhappy one.
Let us now set about the more thorough investigation of the matter. Egoism is so deeply rooted a quality of all individuals in general, that in order to rouse the activity of an individual being egoistical ends are the only ones upon which we can count with certainty. Certainly the species has an earlier, closer, and greater claim upon the individual than the perishable individuality itself. Yet when the individual has to act, and even make sacrifices for the continuance and quality of the species, the importance of the matter cannot be made so comprehensible to his intellect, which is calculated merely with regard to individual ends, as to have its proportionate effect. Therefore in such a case nature can only attain its ends by implanting a certain illusion in the individual, on account of which that which is only a
