Given that Enlightenment rationality developed in Europe as European nations aggressively claimed other parts of the world for their own enrichment, scholars have made rationality the subject of postcolonial critique, questioning its universality and objectivity. In On Reason, the late philosopher Emmanuel Chukwudi Eze demonstrates that rationality, and by extension philosophy, need not be renounced as manifestations or tools of Western imperialism. Examining reason in connection to the politics of differencethe cluster of issues known variously as cultural diversity, political correctness, the culture wars, and identity politicsEze expounds a rigorous argument that reason is produced through and because of difference. In so doing, he preserves reason as a human property while at the same time showing that it cannot be thought outside the realities of cultural diversity. Advocating rationality in a multicultural world, he proposes new ways of affirming both identity and difference.