The element of social stability is something that could be said to juxtapose what it means to be controlled because certain elements of society can't be controlled, that also seems to be the case of thought among the best. Some people have to know what is going on, and for that to occur, a society needs to have a caste, and so that's what Huxley illustrates. Conditioning as well as this idea of what surveillance means about what Huxley is trying to get the message across is that it is entirely pessimistic, but also reaches into the realms of human emotion, something that can be rather difficult to predict. Huxley illustrates this world in the view of emotional loss, a loss of identity, as a caution for those who perceive an authoritarian rule, simply because it will not end up serving those in society well, rather hurting the very presence of what makes us human, being our freedom. Taking a look throughout Brave New World, we see consistency in the topic of control, but the emotional side of how each character stands up for themselves is a testament to the message that Huxley tries to convey to the