The more you know, the more you know you don't know.

We searched Aristotle's extant corpus — the *Metaphysics*, *Nicomachean Ethics*, *Posterior Analytics*, and *De Anima* — and found no passage matching this sentence or its logical structure, nor a Greek or Latin line conventionally translated this way. The sentiment is genuinely ancient, but it is Socratic rather than Aristotelian in flavor, echoing Plato's *Apology* (roughly 21d–23b), where Socrates is called wise precisely because he recognizes what he does not know; Montaigne's "Que sais-je?" runs in the same vein, but neither is this exact wording. What our review does establish is that the clean, aphoristic English phrasing is modern: we found it in print as far back as a 1925 school magazine (*The White Star*) and a 1929 composition text (*Writing* by Ray Palmer Baker and William Haller), and it later circulates in James Geary's *Geary's Guide to the World's Great Aphorists* (2007) — none of these credit Aristotle, and all point to a twentieth-century saying rather than a classical one. Still, none of these early appearances names a specific author as originator, so while the Aristotle attribution is plainly doubtful, we cannot responsibly hand the credit to a single competing person. Under our policy, a modern phrasing with no traceable ancient source and no named alternative author is common-but-unsupported, not proven misattributed. We therefore find this quote attributed.