The novel's main theme deals with free choice and spiritual freedom. Anthony Burgess expresses his view that no matter how "good" one's actions are, unless one has free moral choice, he is spiritually damned (Malafry). The novel revolves around one criminally minded teen, Alex, whose world consists of rape, murder, and ruthless violence. Alex is eventually set up by his "droogs" (friends) and is arrested and jailed. After some time in jail, Alex is placed in a new rehabilitating program that uses electro-shock therapy, new medicines, and exposure to violent film. The program breaks all that Alex holds dear and builds him up with a new artificial conscience. This part of the novel presents the reader with a new, reformed Alex, an Alex without free will or freedom of choice; and Alex that has become a victim. Burgess considers this lack of freedom to be spiritually murderous and terribly wrong. Burgess knows that it is better to choose to be evil, than to be forced to be good (Kris). Alex is tormented by his new state of oppression. He is incapable of making any choice; and he must always do that which is good. Alex is then taken under the wing of a writer who is fighting the oppressive government. The writer greatly publicizes the oppressive rehabilitation the state put Alex through. But Alex is still tormented by his lack of choice. He becomes so tormented that he even attempts suicide. While Alex is in the hospital following his suicide attempt, the tragedy of his oppression is highly publicized. In an attempt to stop public criticism, the state "fixes" Alex. He once again has freedom of choice. Burgess believes that totalitarian governments take away one's individual choice and therefore suffocates his or her soul (Hausey). The state in A Clockwork Orange is a general parallel to any overly oppressive or totalitarian government. By showing what torment Alex went through when rehabilitated by the state, Burgess shows his strong sentiment against governments taking away the choice of individuals, and therefore condemning the individual's spirit. Burgess feels that no matter how awful Alex's actions become, he should be allowed to choose them (Malafry). To be forced to do good is truly wrong. If one is forced to do right, and he does what is right, it is not out of any ethical or moral conviction. When one does what he is forced to do, he is merely a programmed pawn of the state (Hausey). He becomes sub-human, and he is merely a robotic existence. But when one has a choice, he is an individual. When one who is free, chooses good, it is out of moral conscience and good intent. He chooses to do good. The good done through free choice is infinitely better than the forced good of one who is oppressed into morality. Burgess, through his use of satire, rebukes the suppression of freedom. His convictions on free choice and oppression are clearly stated and hidden in the dark satire of the violent novel. Burgess's feeling is that there is potentially more good in a man who deliberately chooses evil, than in one that is forced to be good. Burgess repeatedly reveals his powerful beliefs that even the most violent crimes are trivial when compared to the heinous crime of oppression. He considers it to be a destructive wrong against one's spiritual existence. His war is against moral oppression and the government causing it. His weapon, a powerful one, is his incredible satiric writing ability.
Outside the sphere of violence, critics had praised Anthony Burgess's use of Nadsat more than any other element of A Clockwork Orange. A Clockwork Orange abandons normal language and is written in 'Nadsat' (which means teenager). It is a slang that is spoken by the teenagers at the time. Burgess uses approximately two-hundred and fifty 'nadsat' words-most of which have Russian roots-to convey his story. This gives the reader a sense of intimacy with Alex and his 'droogs' due to the fact that the adults in the novel can't understand what they are govoreeting (saying) (Cohen). There is also a disruption of the flow of narrative aside from this private language. Alex 'Our Humble Narrator' tells the story in a remembering type sequence, but often interjects with thoughts or questions posed directly at the reader. Aside from the strange language that is found on the pages of this novel, one of the most obvious features is Burgess's ability to shock (Malafry). There are many different scenes that are quite disturbing and violent. The reader tends to follow the actions of Alex and his droogs and it is easy to get caught up in all this violent action and lose sight of the real meaning of Burgess's novel. Alex and his droogs embody all animal instincts and the tale that has been set before the reader has little respect for realism (Cohen). We are presented with a world in which the teenagers rule the nights, keeping all real people in their houses. A world where there are milk bars in which fifteen year olds can be served with milk that are made with drugs. This is a world in which Burgess can exaggerate the future problems of society and reflect upon the absurdity of them.
Another characteristic of this novel is the blurring of normal understanding, or the frustration of accepted expectations (Kris). Alex takes every chance to scoff at books, education, and learning. There is also the lack of guilt in Alex for all of his violent acts. Alex steals and kills for no other reason than for his own personal pleasure. He states that he does not steal for the want of money, but for the pleasure it brings him. Though all of these things are definitely different from what the reader may expect, the fact that Alex is the "hero" is probably the most bizarre (Cohen). The reader has relived each of these horrific incidents with him yet at the end of the novel the author solicits our sympathy for him since he has become a victim of the system. Alex obviously is in strong conflict with the norm. He is a depiction of the 'bad element' of society that England was dealing with at the time that Burgess wrote this novel (Malafry). Alex is the personification of all that society would like to ignore or eliminate (Hausey). Aside from pitting Alex against 'normal' society, Burgess uses his story to magnify their decline. He uses this surreal method of therapy (which was actually being discussed at the time) to show the dangers of this type of 'human experiment'. Alex loses his identity first in prison when he becomes 6655321, and then the therapy ultimately takes away his ability to choose to do wrong. It can be argued that the leftist writer in the novel is actually Anthony Burgess himself. Burgess was greatly opposed to this sort of 'treatment,' and though his own experience mirrored that of the writer in the book (Burgess's wife was raped and died due to an intruder in their home when Burgess was away in WWII) and he was a victim of a person such as Alex, he still opposed to what he believes to be unethical. Alex does not treat his friends as equals and is only satisfied with complete control and a dictator-like position, at one point even referring to one of his droogs as 'Dim the soviet.' This idea is often tested in physical confrontation. This is one of the recurrent themes of the novel. Another recurring theme is the repetitive use of certain lines and phrases to illustrate the repetitiveness of Alex's life, and the vicious circle that society has placed him in (Cohen). This serves to bind the whole of the novel together, even to the final chapter where 'Our Humble narrator' is finally ready to break the repetition of violence and crime.
Burgess's definition of moral freedom as the ability to perform both good and evil is presented by implication in his discussion of A Clockwork Orange. In his introduction, he states that if one "can only perform good or only perform evil, then he is a clockwork orange, meaning that he has the appearance of an organism lovely with color and juice but is in fact only a clockwork toy to be wound up by God of the Devil or (since this is increasingly replacing both) the Almighty State" (Kris). Burgess goes on to say, "it is inhuman to be totally good as it is to be totally evil. The important thing is moral choice. Evil has to exist along with good, in order that moral choice may operate." This hypothetical type of clockwork orange nowhere appears in the novel because Alex is neither totally good nor totally evil, but a mixture of both. This remains true even after Alex's conditioning by the government. It is true that the government tries to make Alex totally good through conditioning; however, since it is a coerced goodness, against Alex's will, total goodness is not achieved. There are no morally perfect humans since original sin infects everybody and willful sin is still possible. Human governments cannot make individuals morally perfect, or as Dr. Brodsky states, "a true Christian," so they should not even try (Malafry). It is the mutual responsibility of God and the individual to reach moral perfection; the one giving moral freedom and removing original sin and the other rightly exercising the freedom to include acceptance of God's forgiveness for willful sin (Hausey). "That's what it's going to be then, brothers, as I come to the like end of this tale," and Alex grows up and becomes morally responsible. He is no longer a human clockwork orange.