Education is that which remains, if one has forgotten everything else he learned in school.

Albert Einstein (1879-1955) German-American physicist

(Misattributed)
    (Source)

Einstein cites this (as he agrees with it) as coming from a "wit" in a speech (1936-10-15), Convocation of University of New York, Albany [tr. Arronet]. Collected in "On Education" (1936), Out of My Later Years, ch. 9 (1950).