"One-Dimensional Man" is a critical work by philosopher Herbert Marcuse, published in 1964. In this book, Marcuse argues that modern society creates individuals who are limited in their thoughts and desires, leading to a lack of true freedom. He believes that consumer culture and technological advancements have led people to accept a narrow range of ideas, making them "one-dimensional" and less capable of critical thinking or revolutionary change. Marcuse suggests that this one-dimensionality prevents individuals from recognizing their potential for deeper, more meaningful existence. He calls for a new form of consciousness that challenges the status quo and encourages people to seek genuine liberation from societal constraints, ultimately advocating for a more humane and just world.