The contrast between the subject and the object in the theory of knowledge corresponds ontologically to the contrast between form and matter. It is no more than a translation of this distinction from the theory of experience to metaphysics. Matter, which in itself is absolutely unindividualised and so can assume any form, of itself has no definite and lasting qualities, and has as little essence as mere perception, the matter of experience, has in itself any existence. If the Platonic conception is followed out, it will be apparent that that great thinker asserted to be nothing what the ordinary Philistine regards as the highest form of reality. According to Plato, the negation of existence is no other than matter. Form is the only real existence. Aristotle carried the Platonic conception into the regions of biology. For Plato form is the parent and creator of all reality. For Aristotle, in the sexual process the male principle is the active, formative agent, the female principle the passive matter on which the form is impressed. In my view, the significance of woman in humanity is explained by the Platonic and Aristotelian conception. Woman is the material on which man acts. Man as the microcosm is compounded of the lower and higher life. Woman is matter, is nothing. This knowledge gives us the keystone to our structure, and it makes everything clear that was indistinct, it gives things a coherent form. Woman’s sexual part depends on contact; it is the absorbing and not the liberating impulse. It coincides with this, that the keenest sense woman has, and the only one she has more highly developed than man, is the sense of touch. The eye and the ear lead to the unlimited and give glimpses of infinity; the sense of touch necessitates physical limitations to our own actions: one is affected by what one feels; it is the eminently sordid sense, and suited to the physical requirements of an earth-bound being. Man is form, woman is matter: if that is so it must find expression in the relations between their respective psychic experiences. The summing up of the connected nature of man’s mental life, as opposed to the inarticulate and chaotic condition of woman’s, illustrates the above antithesis of form and matter. Matter needs to be formed: and thus woman demands that man should clear her confusion of thought, give meaning to her henid ideas. Women are matter, which can assume any shape. Those experiments which ascribe to girls a better memory for learning by rote than boys are explained in this way: they are due to the nullity and inanity of women, who can be saturated with anything and everything, whilst man only retains what has an interest for him, forgetting all else.