What a literary argument does
A literary argument is a defended interpretation. It says what a work, or part of a work, means or does, and it proves the case from the text. Three parts carry the weight:
- A thesis: the interpretive claim.
- Evidence: details from the text.
- Commentary: the explanation that shows how the evidence supports the claim and how the claims together support the thesis.
The course puts it this way: a thesis statement expresses an interpretation of a literary text, and requires a defence, through use of textual evidence and a line of reasoning, both of which are explained in an essay through commentary.
The thesis
What a thesis is not
| Kind of sentence | Example | Why it is not enough |
|---|---|---|
| Summary | “In Macbeth, Macbeth kills Duncan and then more people, and is killed.” | Retells events; no interpretation |
| Fact | “Hamlet is a play by Shakespeare.” | Not open to dispute |
| Topic | “Revenge in Hamlet.” | No claim |
| List of devices | “Shakespeare uses soliloquy, imagery and foils.” | Names tools without saying what they accomplish |
| Restating the prompt | “Some characters act against their values.” | Does not respond to the work |
What a thesis is
A strong thesis does these things:
- Makes a claim about meaning or function, not only about what happens.
- Is defensible: a thoughtful reader could disagree, so the writer must prove it.
- Is specific to this work, naming a choice the writer makes and what it accomplishes.
- Responds to the question asked, for example by saying how an inconsistency contributes to the meaning of the work as a whole.
- Says why it matters (the “so what”), at least in outline.
A thesis may preview the development or line of reasoning of an interpretation. This is not to say that it must list the points, the literary elements or the evidence to be used.
Weak to strong: a worked ladder
Prompt (original, written by Marlbridge). “Literary works often show characters who act against what they believe. Choose a novel or play in which a character acts against his or her own stated values, and analyse how this inconsistency contributes to the meaning of the work as a whole.”
| Version | Thesis | Verdict |
|---|---|---|
| 1 | “In Macbeth, Macbeth kills Duncan against his own better judgement.” | A statement of fact about the plot; partially responds, but offers no interpretation |
| 2 | “Shakespeare uses soliloquy, imagery and the witches to show Macbeth’s inconsistency.” | Lists devices; no claim about meaning |
| 3 | “In Macbeth, Shakespeare shows that people can know what is right and still do wrong.” | A claim about meaning, but general and could describe many works |
| 4 | “In Macbeth, Shakespeare gives the hero a conscience that argues clearly against his crime and then lets ambition overrule it; by making Macbeth’s reasoning more persuasive than his actions, the play presents evil not as ignorance of the good but as a betrayal of it, and so makes tragedy a matter of self-division.” | Defensible, specific, previews a line of reasoning (conscience, then ambition, then betrayal), and says what it means |
Notice how Version 4 is built: a claim about the work’s choice (a conscience that argues against the crime), a direction (then ambition overrules it), and a significance (evil as betrayal, tragedy as self-division). It does not list evidence, yet the reader can see the path the argument will take.
The line of reasoning
A line of reasoning is the logical sequence of claims that work together to defend the overarching thesis. It is not a list of examples. Each claim should build on or deepen the last, and each should be something that needs proof.
A weak line of reasoning is a list: “First, a soliloquy. Second, a quotation about blood. Third, another scene.” A strong line of reasoning moves: “Macbeth’s conscience is established. It is overruled by ambition. The consequences show betrayal rather than ignorance.”
You can test a line by asking of each claim: why does this claim come here, and what does it add to the one before? If you can reorder the claims without changing anything, you probably have a list.
Commentary: the part that makes it an argument
The course says a line of reasoning is communicated through commentary that explains the logical relationship between the overarching thesis statement and the claims and evidence in the body of an essay.
A reliable commentary chain has four moves.
| Move | What you do | Typical signal words |
|---|---|---|
| 1. Interpret | Say what the evidence shows | “suggests”, “reveals”, “implies” |
| 2. Explain how | Point to the words or choices that produce the meaning | “the verb”, “the repetition”, “the placement” |
| 3. Connect to the claim | Show how this supports the topic claim | “so”, “which supports”, “this matters because” |
| 4. Connect to the thesis | Say how it moves the whole argument forward | “this deepens”, “thereby”, “which shows that” |
Worked example 1: from weak thesis to strong thesis
Original passage written by Marlbridge for practice. It imitates the register of a nineteenth-century novel and is not taken from any published work.
Miss Tarrant received the Squire’s gift of a hundred pounds with her hands folded and her eyes lowered. “The school has never taken charity,” said she, “and I would not have the girls learn that it may.” The Squire bowed and withdrew. She waited until the carriage had crossed the bridge; then she went to the window and stood a long while counting on her fingers the panes that wanted glazing, and the desks that wanted mending, and the winter that was coming.
Task. The prompt asks how a character’s inconsistency contributes to the meaning of the work. Write a thesis for an essay on this scene and its place in a novel.
Draft 1: “Miss Tarrant refuses the Squire’s gift.” This is fact and plot; it cannot be defended.
Draft 2: “The author uses speech, gesture and counting to show Miss Tarrant’s feelings.” It lists devices and names no claim about meaning.
Draft 3: “Miss Tarrant is a hypocrite.” It is a claim, but a label. It does not say what the inconsistency means for the work, and the evidence of cost resists a simple verdict.
Draft 4 (strong). “By setting Miss Tarrant’s composed public refusal beside her private count of the school’s needs, the narrator presents her principle as a decision made with open eyes and at real cost, and so makes independence in the novel a matter of sacrifice rather than pride.”
Why Draft 4 works. It makes a claim about function and meaning (principle as costly decision). It is defensible: a reader could argue she is simply proud. It previews a line (public refusal, then private cost, then what this means for independence). It does not list the evidence, but the reader can see where the argument will go.
Worked example 2: building an evidence-to-commentary chain
Claim for a body paragraph (from the thesis above). “In private, the narrator exposes the cost of Miss Tarrant’s refusal.”
Evidence. She “stood a long while counting on her fingers the panes that wanted glazing, and the desks that wanted mending, and the winter that was coming.”
Weak commentary. “This shows that she is worried about the school.” (It restates the evidence in softer words and goes no further.)
Strong commentary, step by step.
- Interpret. The list shows that she knows exactly what the school lacks.
- Explain how. The items are specific (“panes”, “desks”) and the sentence builds through two “that wanted” clauses to a closing “that was coming”, so the winter ends the list as the largest, least controllable item. The word “long” suggests that the counting takes time and that she does not hurry away from it.
- Connect to the claim. This private act contrasts with the folded hands and lowered eyes of her public refusal, so the reader sees that the refusal costs her something she can count.
- Connect to the thesis. Because she refuses with full knowledge of what she gives up, her independence reads as a sacrifice, as the thesis claims, and not as pride.
Putting it together (model paragraph). “In private, however, the narrator exposes the cost of Miss Tarrant’s refusal. Once the carriage has gone, she ‘stood a long while counting on her fingers the panes that wanted glazing, and the desks that wanted mending, and the winter that was coming.’ The specific, physical items, and the sentence’s build towards the larger threat of winter, show that she knows exactly what she has given up. The slow count answers the stillness of her folded hands: the composure was performed, and the cost is real. Her independence is therefore not a pose but a decision made with open eyes, which is what makes it, in this novel, a sacrifice rather than pride.”
A line of reasoning for the whole essay. (1) Her public refusal presents independence as a lesson for the girls. (2) Her private count exposes what the lesson costs her. (3) Later events test whether she will keep paying it. Each claim builds on the one before, and none could be moved without breaking the argument.
Self-assessment table (suggested Marlbridge rubric)
Rate a draft thesis and a body paragraph from 1 (not yet) to 3 (secure).
| Feature | 1 | 2 | 3 |
|---|---|---|---|
| The thesis makes an interpretive claim about meaning or function | It summarises or lists | It states a general idea | It states a specific, defensible interpretation |
| The thesis responds to the question and could not be a fact | Repeats the prompt | Partly responds | Directly answers in a way the text can support |
| The claims form a line of reasoning | A list | Some logic | Each claim builds on the last |
| Evidence is specific and relevant | General references | Quoted but loosely linked | Precise and clearly linked |
| Commentary explains how the evidence supports the claim | Restates the evidence | Interprets without explaining how | Interprets, explains how and connects to the thesis |
Common misconceptions
- “My thesis must list my three points.” It may preview a direction, but it does not have to list points, devices or evidence.
- “Summary is a safe start.” Summary is not a claim. State what the events mean.
- “Naming the device is commentary.” “The author uses imagery” is a label. Say what the imagery does and how.
- “More quotations means a stronger argument.” Quotation is evidence. Without commentary it is not an argument.
- “A thesis cannot change.” In practice, a thesis is refined as you gather evidence. The final version should fit what you prove.
- “A strong thesis must be a surprising one.” It must be defensible and specific, not unusual.
Where this leads
The next step is choosing and handling evidence well, in Topic 6.7. Test yourself with the Topic 6.6 practice questions, review with the revision notes and track your progress with the checklist.
Quick questions
What makes a thesis defensible?
It is an interpretation that a thoughtful reader could argue against. A fact ('Macbeth kills Duncan') cannot be defended because no one disputes it; a claim about what the murder means or how the play presents it can be defended with evidence.
Does my thesis have to list my body-paragraph points?
No. A thesis may preview the direction of the argument, but it does not have to list the points, the literary devices or the evidence. A clear interpretive claim is the priority.
What is the difference between evidence and commentary?
Evidence is what the text says or does, quoted or closely described. Commentary is your explanation of how that evidence supports your claim and connects to your thesis. Evidence alone is not an argument.
How long should a thesis be?
There is no fixed length. It should be as long as it needs to make a specific interpretive claim, usually one or two sentences.