hart's essay, "models of repression", discusses what it means for a mental phenomenon to be unconscious and the processes by which mental phenomena are rendered unconscious. he explores models of unconscious states and repression, arguing that it is important to treat the unconscious and repression simultaneously. the selection from sartre, ""mauvaise foi" and the unconscious", is an extract from "being and nothingness" (1943) in which sartre criticizes freud's theory of the unconscious, and discusses freud's ideas in relation to sartre's conception of bad faith. sartre maintains that by distinguishing between the id and the ego, freud undermines the unity of the mind.