If I agreed with you we’d both be wrong.

This quip circulates widely as an anonymous retort in English-language humor, especially in conversational settings where someone wants to dismiss another person’s argument as obviously mistaken. It is typically used as a sharp, joking comeback rather than a serious philosophical claim, and it appears frequently on joke lists, office posters, and internet quote compilations without a stable attribution. Although it is sometimes misattributed to well-known wits (e.g., comedians or public figures), the phrase’s popularity seems to come from oral/folk transmission and later mass sharing in print and online ephemera rather than from a single identifiable speech, book, or article.

The line is a compact piece of rhetorical one-upmanship: it implies the other person is wrong, and that agreeing with them would make the speaker wrong as well—so agreement would produce “two wrongs.” Its humor comes from the mock-logical structure and the feigned inevitability of the conclusion. As a social move, it shuts down debate by reframing disagreement as self-evident and by positioning the speaker as the arbiter of correctness. Read more charitably, it also gestures at the idea that consensus is not the same as truth; agreement can be mutually reinforcing yet still mistaken.

If I agreed with you, we’d both be wrong.
If I agreed with you, then we’d both be wrong.
If I agreed with you, we would both be wrong.