What are the conditions that have brought woman to her position of dependence upon man? How far is her state of physical and mental inferiority the result of this position? To what extent is she justified in her present revolt? What result will her freedom have on the sexual relationships? Will the change be likely to work for the benefit of the future? In a word, how far are the new claims woman is making consistent with race permanence? It is not one, but a whole group of questions that have to be answered when once the ideal of the right of the present position of the sexes is shaken. The subject is so entangled that a straightforward step-by-step inquiry will not always be possible. Dogmatic conclusions, and the bringing forward of too hasty remedies must alike be avoided. The past must lead us to the present, and thence we must look to the future. The first need is to find out every fact that we can that will help us in our search for the truth. Most writers on the subject, in their desire to fix on a cause of the evil, have selected one factor, or group of factors, and largely neglected all others. Otto Weininger, for instance, the brilliant modern denouncer of woman, refers the whole great difference between women and men to one cause--the bondage of sexuality. Mrs. Stetson, in _Woman and Economics_, finds a different answer to the same question, and assumes that the whole evil is of economic origin. Both explanations are in part true, but neither is the truth. To institute reform successfully needs a wider spirit. We must face sex problems with biological and historical knowledge. Before we can understand women's present position in society, or even suggest a future, we must examine the place she has filled in the civilisations of the past; we must fix, too, the part the female half of life has played in the evolution of the sexes. Yet an inquiry into facts is only the first stage, and not the final. When we can go on from these facts to their results, and learn the reasons of what we have discovered, we shall become to some extent, at least, prepared. Then, and then only, can we venture to look forward and intelligently suggest whither the present revolution is leading us.