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the things in which men most excel women are those which require most plodding and long hammering at a single thought, while women do best what must be done rapidly? A woman's brain is sooner fatigued, sooner exhausted; but given the degree of exhaustion, we should expect to find that it would recover itself sooner. I repeat that this speculation is entirely hypothetical; it pretends to no more than to suggest a line of enquiry. I have before repudiated the notion of its being yet certainly known that there is any natural difference at all in the average strength or direction of the mental capacities of the two sexes, much less what that difference is. Nor is it possible that this should be known, so long as the psychological laws of the formation of character have been so little studied, even in a general way, and in the particular case never scientifically applied at all; so long as the most obvious external causes of difference of character are habitually disregarded—left unnoticed by the observer, and looked down upon with a kind of supercilious contempt by the prevalent schools both of natural history and of mental philosophy: who, whether they look for the source of what mainly distinguishes human beings from one another, in the world of matter or in that of spirit, agree in running down those who prefer to explain these differences by the
