For years, American higher education institutions have been working hard to increase the racial and ethnic diversity of campuses. This work is driven in part by arguments for social justice and the felt need for equal and expanded access to higher education. Since the society is diverse, the author argues that campuses should also reflect that. Educators need to celebrate both the visible and the invisible diversity of their campuses so that they can prepare future citizens to engage in productive, respectful civic discourse with those who disagree with them. Without this kind of commitment to multiple aspects of diversity, colleges will not be able to produce the kind of citizens who will keep the democracy vibrant. (Contains 2 figures and 1 note.)