 There are many other features of Reason and Revolution that are worth discussing here, especially Marcuse’s critique of positivism. However, these issues will come up again in other works that will be discussed later. Suffice it to say that at this point Marcuse presents negative thinking as an alternative to what he will later call one-dimensional thinking. It is through negative thinking and revolution that liberation becomes possible. In the next section we will examine another possibility for liberation. 