„Az elmék olyanok, mint az ejtőernyők; akkor működnek, ha nyitva vannak.”

Eredeti

Minds are like parachutes: they only function when open.

Quoted in Giovanni Graziadei, Gestione della produzione industriale, Hoepli, Milano, 2004, p. 65 http://books.google.it/books?id=xomdPzmzKAcC&pg=PA65#v=onepage&q&f=false. ISBN 88-203-3395-3. May be a bit questionable http://www.barrypopik.com/index.php/new_york_city/entry/minds_are_like_parachutes_they_only_function_when_open/.