There 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 WeiningerSending children away to get control of their anger perpetuates the feeling of 'badness" inside them...Chances are they were already feeling not very good about themselves before the outburst and the isolation just serves to confirm in their own minds that they were right.
Otto WeiningerThe man of genius possesses, like everything else, the complete female in himself; but woman herself is only a part of the Universe, and the part can never be the whole; femaleness can never include genius. This lack of genius on the part of woman is inevitable because woman is not a monad, and cannot reflect the Universe.
Otto Weininger