The Effect of Language in Propaganda

From Thought Reform and the Psychology of Totalism: A Study of 'brainwashing' in China by Robert Jay Lifton (1989):

For an individual person, the effect of the language of ideological totalism can be summed up in one word: constriction. He is, so to speak, linguistically deprived; and since language is so central to all human experience, his capacities for thinking and feeling are immensely narrowed. This is what Hu meant when he said, "using the same pattern of words for so long... you feel chained."