Zelensky and his fellow Ukrainians have reminded Americans of the values and causes we used to admire in ourselves — the ardent hunger for freedom, the deep-rooted respect for equality and human dignity, the willingness to fight against brutal authoritarians who would crush the human face under the heel of their muddy boots. It is as if Ukraine and Zelensky have rekindled a forgotten song, and suddenly everybody has remembered how to sing it.

Zelensky was not subtle about making this point. He said that what Ukraine is fighting for today has echoes in what so many Americans fought for over centuries. I thought of John Adams, Frederick Douglass, Theodore Roosevelt, George Marshall, Fannie Lou Hamer, the many unsung heroes of the Cold War. His words reminded us that America supports Ukraine not only out of national interest — to preserve a stable liberal world order — but also to live out a faith that is essential to this country’s being and identity. The thing that really holds America together is this fervent idea.