Critics think they have the last word, but sometimes art keeps talking. In 2008, while organizing the Jewish Museum’s boisterous survey of Abstract Expressionism, “Action/Abstraction: Pollock, de Kooning and American Art, 1940-1976,” the curator, Norman L. Kleeblatt, noticed that two paintings — Lee Krasner’s “Untitled” (1948) and Norman Lewis’s “Twilight Sounds” (1947) — seemed to be speaking to each other. He had the good sense to listen and, later, to orchestrate a deeper conversation. The result is “From the Margins: Lee Krasner and Norman Lewis, 1945-1952,” a nuanced, sensitive and profound exhibition.

The show isn’t really a dialogue, in the conventional sense. But it bravely elides differences of gender, race and religion, finding that Krasner and Lewis — a Jewish woman and an African-American man — shared a visual language that was a subtler, more intimate dialect of Abstract Expressionism.