Sandra Harding is professor of education and women's studies at UCLA, where she also directs the Center for the Study of Women. She has lectured at over 200 universities around the world, and authored or edited 10 books and special journal issues. Her latest publication is, Is Science Multicultural? Postcolonialisms, Feminisms and Epistemologies (Indiana University Press, Bloomington, IN, 1998). Three decades ago women's movements around the globe were rigorously questioning the exclusion of women, their interests, and visions of the good life, from policy debates, including those of science. What underlying assumptions and processes had led to the noticeable underrepresentation of women scientists and engineers, and what was responsible for their even lower numbers at higher levels in scientific and technological institutions? How, specifically, did the cultures and practices of scientific institutions contribute to the limited attention to and lack of funding for women's expressed concerns, including scientific research in the areas of reproduction, health, work, and lingering social inequalities? What assumptions and processes had led male scientists and policy-makers to equate their own concerns and opinions with human perspectives in general? In the last 30 years, great progress has been made in analyzing and responding to these concerns. Despite the roadblocks, women have made headway, if unevenly, as they enter the fields of science and technology. Greater opportunity in these fields has allowed more women to share good wages, interesting work, and high social status associated with these occupations. What positive effects, if any, have these changes had on the sciences and their institutions and cultural practices? It appears that improving women's opportunities in science has benefited both the sciences and the cause of women in general, for the example of women's successes in fields thought to be most resistant to them has provided powerful encouragement to women seeking equality in other endeavors. Just as Marie Curie's achievements excited the imaginations of women around the world, so, too, are women today inspired by the successes of women scientists, mathematicians, and engineers. Thus, in those cases where science and technology institutions have made it possible for women to advance, they have provided a model for other fields. The entrance of women into such professions enables the sciences to take at least some credit for increasing social justice and for providing an example of what is possible far beyond the borders of scientific and technological institutions themselves. Advancing scientific careers for women has led to other benefits for science, the most obvious being an enlarged pool of smart, well-trained, highly motivated individuals from which to staff its projects. Whatever the social, political, or psychological benefits that men may have gained by discriminating against women in the past, the intellectual loss has never been justified. Invoking gender criteria when recruiting and advancing the best scientists and engineers works against their interests. ![Figure][1] Moreover, these days the presence of significant numbers of women in a field often increases its legitimacy and the value of its work in the public perception. For example, research that results in medical recommendations concerning women's health issues is more likely to be perceived as objective when it comes from institutions in which women have had a visible role in designing and supervising research projects. In this context it is worth pointing out that so-called women's health issues are not just about women's bodies. As long as women continue to be responsible for the daily maintenance of households and their family's health, women's health issues will include everyone's health issues. Women in Europe and the United States, no less than in many developing countries, are responsible for daily healing and pharmacological knowledge in households, doctors' offices, clinics, and hospitals. Given this existing, intense involvement, the absence of women from health policy councils neglects resources that can be used to advance everyone's health. Gender diversity in policy-makers enhances the quality of decision-making in science and technology. To stress the importance of women's perceptions and analyses, especially around issues that most affect them, is simply to point out that allowing for different viewpoints can have immense value in scientific and technological work. Health sciences are not the only area to benefit from the enhanced role of women. Including women in the selection and supervision of projects increases the perceived legitimacy of the research results and, sometimes, the actual objectivity and effectiveness of research projects. Any aspect of human life where women and men are assigned different roles—whether nature or culture makes the assignment—is one in which gender-based knowledge will develop. This is true of women both in their professional and in their more traditional roles, where they are often in the best position to notice certain ranges of environmental problems as they observe neighborhood patterns of children's illnesses, the funny look of washing-machine water, or the peculiar smell of the dirt in which their children play. In societies where women are responsible for local agriculture, animal husbandry, and forestry, they develop repositories of knowledge about their environment that is continually tested and revised as the environmental and social conditions of their work change. These repositories of knowledge are proving increasingly valuable in the Third World as conventional Western prescriptions for development are being reevaluated. There are instances when the scientific and technological expertise of the North can learn from the time-tested practices of other cultures for sustainable development. Women's greater participation in the...