Argument is the engine of the essay — the logical structure by which a writer moves from evidence to conclusion. An argument is not a fight or a disagreement; it is a chain of reasoning that connects a claim to the grounds that support it.
Stephen Toulmin’s model provides the most useful anatomy of argument for essay writers. An argument has three core components: a claim (what the writer asserts), grounds (the evidence supporting the claim), and a warrant (the reasoning that connects the grounds to the claim). The warrant is often unstated — the writer assumes the reader will supply it. When the warrant is controversial or non-obvious, it must be made explicit, or the argument fails silently.
An essay’s argument is not always a single claim defended start to finish. The Montaignean essay tradition works through a sequence of smaller arguments, each modifying or complicating the last, so that the essay’s overall argument emerges through the process of thinking. The Baconian tradition is more direct: claim, evidence, defense. Both are legitimate forms of argument — one is exploratory, the other assertive.
The quality of an argument depends on the strength of its evidence, the soundness of its warrants, and its honest engagement with counterargument. An argument that ignores strong objections is weaker than one that addresses them — Wayne Booth showed that rhetoric works through identification, and readers identify with writers who take opposing views seriously [@booth1961].
Related terms
- evidence — the material that supports an argument’s claims
- counterargument — opposing positions the argument must address
- conclusion — where the argument arrives
- thesis — the essay’s central claim