It is my pleasure to introduce Professor Marie Mercat-Bruns’s work to an American audience in this translation. While the topic of antidiscrimination protections in employment law is of course of very great intrinsic interest, it has a much greater symbolic reach, and I hope that with this translation, Mercat-Bruns’s brilliantly conceived project will find a global audience. For the idea of antidiscrimination is, as Yale Dean Robert Post says in this book, another face of the ideal of the citizen-worker and the attributes of that citizen-worker that are above or below the notice of the state. The conception of the citizen-worker is under tremendous pressure, both in Europe and the United States, arising from a new sentiment among citizens in all advanced democracies that salient aspects of one’s identity and humanity need not be covered or closeted in public, nor are they appropriate bases for rejection or refusal. The law and philosophy of antidiscrimination is, in other words, the law and philosophy of the democratic citizen.