I BELIEVE THAT the intellectual capacity of women is on the whole inferior to that of men. By "on the whole," I do not mean just "on the average"; though I do mean that much. My belief is, if you take any degree of intellectual capacity which is above e average for the human race, as a whole, then a possessor of that degree of intellectual capacity is a good deal more likely to be man than a woman.

This proposition is consistent, of course, with there being women, and indeed with there being any number of women, at any level of intellectual capacity however high. But it does mean, for example, that if there is a large number of women at a given above average level of intellectual capacity, then there is an even larger number of men at that level.

In the past almost everyone, whether man or woman, learned or unlearned, believed the intellectual capacity of women to be inferior to that of men. Even now this is, I think, the belief of most people in most parts of the world. In this article my main object is simply to remind the reader of what the evidence is, and always was, for this old belief, and of how strong that evidence is.

An opposite belief has become widely current in the last few years, in societies like our own: the belief that the intellectual capacity of women is on the whole equal to that of men. If I could, I would discuss here the reasons for the sudden adoption by many people of this opinion. But I cannot, because I have not been able to find any reasons for it, as distinct from causes of it. The equality-theory (as I will call it) is not embraced on the grounds of any startling facts which have only lately come to light. It is not embraced on the grounds of some old familiar facts which have been misunderstood until lately. It is not embraced, as far as I can see, on any grounds at all, but from mere prejudice and passion. If you ask people, "What evidence is there for the equality-theory?", you do not get an answer (though you are likely to get other things).