He who knows best...(Quotation)
From Thomas Jefferson Encyclopedia
"The wise know their weakness too well to assume infallibility; and he who knows most, knows best how little he knows." - Thomas Jefferson, The Proceedings of the Government of the United States, in maintaining The Public Right to the Beach of the Missisipi, Adjacent to New-Orleans, Against the Intrustion of Edward Livingston (1812)
Note: This passage is often erroneously quoted as, "He who knows best, knows how little he knows."