Begging the Question: Definition, Examples & Common Misuse
Begging the question (petitio principii) is a logical fallacy in which an argument's premise assumes the truth of the conclusion. Rather than providing evidence, the arguer smuggles the conclusion into the premise — making the argument technically valid but completely uninformative.
Correct Usage
"His argument begs the question — he assumes the very thing he's trying to prove."
Refers to the logical fallacy of assuming the conclusion.
Common Misuse
"That begs the question: why didn't they call the police?"
This means "raises the question" — not the same thing.
The Most Common Misuse in English
"That begs the question" is one of the most frequently misused phrases in English. Most people use it to mean "that raises the question" or "that prompts the question." But its original and precise meaning refers to the logical fallacy of assuming your conclusion as a premise. The confusion is so widespread that many style guides now accept both uses — but in formal logic, academic writing, and precise rhetoric, the original meaning still holds.
How Begging the Question Works
The fallacy takes its Latin name, petitio principii ("assuming the starting point"), from Aristotle's list of fallacies. The argument is structured so that you must already believe the conclusion to accept the premise. If you don't already agree, the argument gives you no reason to start agreeing.
What makes begging the question tricky is that the premise and conclusion often use different words to express the same idea. "Stealing is wrong because taking other people's property is immoral" sounds like an argument with a premise and conclusion — but "stealing" and "taking other people's property" are the same thing, and "wrong" and "immoral" are synonymous. No new information has been introduced.
Begging the Question vs. Circular Reasoning
Begging the question and circular reasoning are closely related but not identical. Begging the question typically involves a single argument where the conclusion is hidden in a premise. Circular reasoning usually involves two or more claims that support each other in a loop (A proves B, B proves A). In practice, begging the question is often considered a specific type of circular reasoning.
Begging the Question Examples
Classic Begging the Question Examples
- —"Lying is wrong because people should always tell the truth." — The conclusion (lying is wrong) is simply restated as the premise (people should tell the truth).
- —"The death penalty is unjust because it's wrong to kill people." — The argument assumes that state execution equals "killing people" in the morally wrong sense — the very point being debated.
- —"Capitalism is the best economic system because free markets produce the best outcomes." — "Best system" and "best outcomes" are the same claim in different words.
- —"This painting is beautiful because it's aesthetically pleasing." — "Beautiful" and "aesthetically pleasing" mean the same thing; no evidence is offered.
- —"Abortion should be illegal because it's murder." — Classifying abortion as "murder" assumes the moral conclusion the argument is trying to prove.
Begging the Question in Everyday Arguments
- —"You should believe me because I'm telling the truth." — Your truthfulness is the very thing in question.
- —"That book is boring because it's not interesting." — "Boring" and "not interesting" are synonymous; no actual reason is given.
- —"Exercise is important because physical activity matters for health." — The premise is just a rephrasing of the conclusion.
- —"We need to reduce emissions because pollution is bad." — While likely true, this assumes the very value judgment the argument needs to establish.
- —"Remote work is less productive because employees don't work as hard at home." — Assumes the conclusion (less productive) within the premise (don't work as hard).
Begging the Question in Philosophy
- —"The external world exists because I can perceive it, and my perceptions are reliable because they reflect the external world." — A famous epistemological circle.
- —"Humans have inherent dignity because every person has intrinsic worth." — "Inherent dignity" and "intrinsic worth" are the same concept.
- —"Knowledge requires justified true belief because true beliefs that are justified constitute knowledge." — The definition is used to prove itself.
- —"Stealing is immoral because taking what belongs to others is wrong." — The premise and conclusion express the same moral judgment.
- —"Democracy is the best form of government because rule by the people produces the most just society." — Assumes democratic outcomes are most just, which is the claim being made.
Begging the Question in Public Discourse
- —"This policy will create jobs because it stimulates economic growth." — If the mechanism isn't explained, "creates jobs" and "stimulates growth" are just the same claim twice.
- —"Social media is harmful to teens because it damages young people's mental health." — "Harmful" and "damages mental health" restate the same assertion.
- —"We need stricter gun control because there are too many guns." — "Too many" assumes the conclusion (that the current number is excessive) as a premise.
- —"Alternative medicine works because natural remedies are effective." — "Works" and "effective" are synonymous; no independent evidence is presented.
- —"The electoral college should be abolished because it's an undemocratic system." — Whether it's "undemocratic" is precisely what the debate is about.
How to Spot and Avoid Begging the Question
Restate the premise and conclusion in their simplest form. If they express the same idea — even in different words — the argument begs the question. Ask: "Would someone who disagrees with my conclusion accept this premise?" If they wouldn't, your premise is probably just your conclusion in disguise.
In your own writing, combat this fallacy by always providing independent evidence. If your claim is "X is true," your support should be something other than "X is true, stated differently." Use data, examples, expert authority, or logical deduction from accepted premises — anything that gives the reader a new reason to believe your conclusion.
Write More Precisely, Every Day
Mastering logical fallacies makes you a more precise and persuasive writer. Hearth's distraction-free editor and daily streak tracking help you practice every day.
Start writing free