EditorialVisitors view, from left, “Diana and Actaeon” (1556–1559), “Diana and Callisto" (1556–1559) and “Perseus and Andromeda,” about 1554–1556, on display in “Titian: Women, Myth & Power,” at the Isabella Stewart Gardner Museum in Boston, Aug. 10, 2021. (Matt Cosby/The New York Times)