It is necessary to understand this evolution toward equality, in order to visualize the future relationship between men and women. A new human relationship, based on mutual understanding and assistance, demands a deep spirit of comradeship, which alone can bring peace between men and women, with respect for each others’ rights and dignity instead of fear and distrust. Progress toward mutual cooperation is blocked by disbelievers in evolution, who doubt the human capacity for complete friendliness and genuine interest. For them, love and sex will always be imbued with hostility and warfare. They not only doubt that equality between the sexes will ever be possible; they deny that man is capable of overcoming his “innate” hostility and aggression. Love without jealousy seems to them impossible; sexual interest without drive for possession unimaginable; sexual excitement without brutality unrealistic.
Are human beings psychologically and emotionally capable of genuine goodness and sincere social interest? When we regard our fellow men of today, we may be inclined to accept a pessimistic answer. But we must realize that man is today perhaps at his worst in regard to social harmony. We know that the social relationship between human beings is strained today more, perhaps, than ever before, because we are living between two stages of culture, and because we are approaching a new, never before experienced equilibrium. It is characterized by a new feeling of belonging together, based on a new conception of cooperation and equality. As social and economic demands have initiated it, so it is bound to produce new social and economic conditions, unprecedented in their implications and effects. 
