The writings of the late Harvard political scientist anticipate America’s political and intellectual battles — and point to the country we may become.

Carlos Lozada

Sometimes a prophet can be right about what will come, yet torn about whether it should.

President Trump’s recent speech in Warsaw, in which he urged Europeans and Americans to defend Western civilization against violent extremists and barbarian hordes, inevitably evoked Samuel P. Huntington’s “clash of civilizations” — the notion that superpower rivalry would give way to battles among Western universalism, Islamic militance and Chinese assertiveness. In a book expanded from his famous 1993 essay, Huntington described civilizations as the broadest and most crucial level of identity, encompassing religion, values, culture and history. Rather than “which side are you on?” he wrote, the overriding question in the post-Cold War world would be “who are you?”