Key Themes

Theme 1: Responsibility

Responsibility is the central theme of An Inspector Calls. The entire play asks a single question: are we responsible for other people? Priestley presents two opposing answers. Arthur Birling argues for individualism: “a man has to mind his own business and look after himself and his own.” Inspector Goole argues for collective responsibility: “We are members of one body. We are responsible for each other.” The play is structured as a debate between these two positions, with the Inspector systematically proving that Birling’s philosophy leads to suffering and death.

What makes the theme powerful is that Priestley shows responsibility operating in a chain. No single Birling killed Eva Smith. Each contributed one link — sacking her, getting her sacked, using her, rejecting her — and the cumulative effect was fatal. Priestley argues that irresponsibility is not just about individual cruelty but about a system that allows the powerful to harm the vulnerable without consequences. The chain of responsibility is also a chain of complicity: everyone is involved, and claiming ignorance is no defence.

Theme 2: Class and Social Inequality

Class is the engine that drives every event in the play. The Birlings occupy a position of wealth and power that insulates them from the consequences of their actions. Eva Smith, by contrast, has no power, no voice, and no protection. When she asks for a modest pay rise, she is sacked. When she finds new work, she is sacked again because a wealthy customer is jealous. When she seeks help from a charity, she is refused because she has the wrong social status. The class system is not just a backdrop — it is the mechanism through which every injustice occurs.

Priestley exposes how the upper classes use language to dehumanise the working class. Birling calls his workers “these people” and talks about “coming down sharply” on them. Mrs Birling claims Eva’s “fine feelings” are “absurd in a girl in her position.” This language reveals a fundamental belief that working-class people are less human, less capable of genuine emotion, and less deserving of respect. Priestley shows that class prejudice is not just unpleasant — it is lethal.

Theme 3: Age and Generational Conflict

The generational divide is Priestley’s structural mechanism for showing who can change and who cannot. Arthur and Sybil Birling are so deeply embedded in Edwardian values that they cannot accept the Inspector’s message. When the Inspector is revealed as possibly fake, they are immediately relieved: “The whole thing’s different now.” For them, the absence of punishment means the absence of guilt.

Sheila and Eric react completely differently. Sheila insists: “It doesn’t make any difference … You began to learn something. And now you’ve stopped.” The young Birlings understand that moral responsibility does not depend on whether you get caught. Priestley uses this divide to speak directly to his audience: the older generation created the conditions for two World Wars. It is the younger generation who must ensure it never happens again.

Theme 4: Gender

The play exposes how women are treated differently in Edwardian society. Eva Smith is exploited at every stage by both men and women. She is sacked by Birling (a male employer), sacked by Sheila (a wealthy female customer), used by Gerald (a wealthy male lover), and refused help by Mrs Birling (a female gatekeeper of charity). Priestley shows that patriarchal values harm women across all classes, though working-class women like Eva are the most vulnerable.

Sheila’s transformation also has a gender dimension. At the start of the play, she is the dutiful daughter, excited about her engagement ring and easily managed by her father. By Act 3, she has become an independent moral agent who challenges both her parents and her fiancé. Priestley suggests that the liberation of women — their ability to think, speak, and act independently — is part of the broader social transformation he is calling for.

Theme 5: Morality and Conscience

The play asks: what does it mean to be a good person? Priestley rejects the Edwardian definition of morality, which was based on respectability — appearing decent, attending church, running charities, and maintaining social status. The Birlings tick all these boxes and yet are morally bankrupt. Mrs Birling runs a charity but turns away a desperate woman. Birling is a magistrate and former Lord Mayor but exploits his workers. Gerald is charming and well-mannered but uses a vulnerable woman for his own pleasure.

Priestley replaces this shallow definition with a deeper one: true morality is about how you treat the most vulnerable people in society. The Inspector embodies this moral standard. He is not interested in social status, reputation, or appearances — he is interested in actions and their consequences. The play argues that conscience is not something imposed from outside (by law, religion, or social convention) but something that must come from within. Those who have it (Sheila, Eric) are transformed. Those who don’t (Birling, Sybil) are condemned to repeat their mistakes.