Some advocates of multiculturalism ask us to celebrate, rather than just tolerate, diversity, as if our differences weren’t a reason for disagreement in the first place, but something good and beautiful — a multicultural “mosaic”! Others argue that our moral, religious, and philosophical convictions shouldn’t leave the private sphere. A good example is French laïcité: you are a citoyen in public and a Jew, Christian, or Muslim at home. Both models try to remove our reasons for objecting to beliefs and values we don’t share — one tries to remove them altogether, the other tries at least to keep them out of sight. A culture of debate, on the other hand, allows us to engage our differences in a way that is serious, yet respectful and mutually beneficial.