In this article I consider contemporary philosophical conceptions of human nature from the point of view of the ideal of gender equality. My main argument is that an essentialist account of human nature, unlike what I take to be its two main alternatives (the subjectivist account and the cultural account), is able coherently to justify the educational pursuit of this ideal. By essentialism I refer to the idea that there are some features common to all human beings (independent of individual, cultural and historical factors) that are conducive to a good life and human flourishing. I also consider the main philosophical challenge of essentialism, the naturalistic fallacy, and the ways in which contemporary versions of essentialism might escape this charge.