What is true of the physical differences between women and men is true also of the mental differences. We may readily accept the saturating influence of sex on woman's mind. I mean a deep-lying distinction, not superficial and to be explained away as due to outside things, but based on the essential fact of her womanhood--her capacity for maternity. But the impracticability of making any definite statement as to the exact nature or extent of such mental sexual differentiation is evident. First must be cleared up the difficulty of distinguishing between those differences that are fundamental and constitutional as being directly dependent on the woman character and those that have, or seem to have, arisen through distinction of training or environment, which may be termed evolutionary differences, and are likely to be changed by altered conditions. Even the trained biologist is unable to draw an undisputed line of demarcation between the two kinds of differences, and, even if it were drawn, the conclusion would not help us very much. For with regard to these evolutionary differences that are liable to change many questions have to be considered. Can they safely be modified or disregarded? Do we want them changed? Will the alteration really be of benefit to women? Only such qualities as can be proved clearly to be mis-differentiations--_i.e._ directly harmful--can be contemptuously dismissed. Thus the problem is an extraordinarily difficult one. I can only touch its outer fringe. It is held that men have greater mental variability and more originality, while women have greater stability and more common sense. In this connection may be noticed the characteristic male restlessness; man is probably more inclined to experiment with his body and his mind and with other people, while woman's constitution and temper is relatively more conservative. It is held that women have the greater integrating intelligence, while men are stronger in differentiation. The thinking power of woman is deductive, that of man inductive; woman's influence on knowledge is thus held to be indirect rather than direct. But women have greater receptive powers, retain impressions better and have more vivid and surer memories; for which reason women are generally more receptive for facts than for laws, more for concrete than for general ideas. The feminine mind shows greater patience, more open-mindedness and tact, and keener insight into character, greater appreciation of subtle details and, consequently, what we call intuition. The masculine mind, on the other hand, tends to a greater height of sudden efforts, of scientific insight and experiment, greater frequency of genius, and this is associated with an unobservant or impatient disregard of details, but a stronger grasp of general ideas.