evidence: I spent one afternoon with Albert Einstein: unpretentiousness, warmth, some false political predictions. I soon lost my self-consciousness, a rare treat for me at that time. I still love to quote a statement of his "Two things are infinite, the universe and human stupidity, and I am not yet completely sure about the universe." [...] "As Albert Einstein once said to me: 'Two things are infinite: the universe and the human stupidity.'" [...] Perls — who admitted that his encounters with celebrities served the primary purpose of "providing some material for boasting" — may have found that his "infinite stupidity" line went down better at parties when he inserted the preface "As Albert Einstein once said to me" — even if that attribution did not make sense.