Mankind occurs as male or female, as something or nothing. Woman has no share in ontological reality, no relation to the thing-in-itself, which, in the deepest interpretation, is the absolute, is God. Man in his highest form, the genius, has such a relation, and for him the absolute is either the conception of the highest worth of existence, in which case he is a philosopher; or it is the wonderful fairyland of dreams, the kingdom of absolute beauty, and then he is an artist.
Otto WeiningerThere are transitional forms between the metals and non-metals; between chemical combinations and simple mixtures, between animals and plants, between phanerogams and cryptogams, and between mammals and birds [...]. The improbability may henceforth be taken for granted of finding in Nature a sharp cleavage between all that is masculine on the one side and all that is feminine on the other; or that any living being is so simple in this respect that it can be put wholly on one side, or wholly on the other, of the line.
Otto WeiningerThere are probably very few people who have not at some time of their lives had some quality of genius. If they have not had such, it is probable that they have also been without great sorrow or great pain. They would have needed only to live sufficiently intently for a time for some quality to reveal itself. The poems of first love are a case in point, and certainly such love is a sufficient stimulus.
Otto WeiningerThe decision must be made between Judaism and Christianity, between business and culture, between male and female, between the race and the individual, between unworhtiness and worth, between the earthly and the higher life, between negation and God-like. Mankind has the choice to make. There are only two poles, and there is no middle way.
Otto Weininger