Although there are many varieties of feminist theory, they share two objectives. The first is descriptive: to reveal obvious and subtle gender inequalities. The second is change-oriented: to reduce or eradicate those inequalities. Feminist scholars differ with regard to how they use the terms sex and gender, and how much change in gender relations, and what means of change, they advocate. Some feminists are liberal advocates of equal opportunity, while others endorse more radical alternatives. In other words, there are both critical and non-critical versions of feminist scholarship.