Wikiquote records this attribution to Albert Einstein as DISPUTED: the archive itself currently sets out doubt about whether they said it. As discussed in this entry from The Quote Investigator, the earliest published attribution of a similar quote to Einstein seems to have been in Gestalt therapist Frederick S. Perls' 1969 book "Gestalt Theory Verbatim", where he wrote on p. 33: "As Albert Einstein once said to me: 'Two things are infinite: the universe and human stupidity.' But what is much more widespread than the actual stupidity is the playing stupid, turning off your ear, not listening, not seeing." Perls also offered another variant in his 1972 book "In and Out the Garbage Pail", where he mentioned a meeting with Einstein and on p. 52 quoted him saying: "Two things are infinite, the universe and human stupidity, and I am not yet completely sure about the universe." However, Perls