“ A woman's mistakes are specifically those of a clever self-educated man, who often sees what men trained in routine do not see, but falls into errors for want of knowing things which have long been known. ”
 John Stuart Mill, The Subjection of Women (1869). copy citation

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“though at the same time no less ready in rectifying those generalizations, as her observation takes a wider range. But the corrective to this defect, is access to the experience of the human race; general knowledge—exactly the thing which education can best supply. A woman's mistakes are specifically those of a clever self-educated man, who often sees what men trained in routine do not see, but falls into errors for want of knowing things which have long been known. Of course he has acquired much of the pre-existing knowledge, or he could not have got on at all; but what he knows of it he has picked up in fragments and at random, as women do. [Pg 108] But this gravitation of women's minds to the present, to the real, to actual fact, while in its exclusiveness it is a source of errors, is also a most useful counteractive of the contrary error.” source