Mary Cassatt carried a sharp, uncompromising eye from Pennsylvania to Paris and used it to redraw the possibilities of painting. Born into a well-off family, she defied the expectations of polite society by insisting on becoming an artist, a choice that set her against her parents’ wishes and against the narrow doors of the academies. Paris became her lifelong ground, and there she encountered Impressionism—not as a follower, but as an equal. Edgar Degas recognized in her the same taste for risk and clarity, and their friendship spurred her forward. Her brush chose interiors, balconies, and quiet rooms, where the dramas were subtle but immense: the gestures of women, the weight of a child’s head on a shoulder, the concentration of someone reading. Cassatt’s color was frank, her draftsmanship unsentimental. She refused to idealize her subjects; instead she painted the lives she knew, claiming domestic spaces as places of complexity and strength. Her work opened a door for women painters on both sides of the Atlantic. In 1926, nearly blind, she died in France, far from the country of her birth, leaving behind a body of art that continues to pulse with the intelligence and resolve of its maker.