Das Zitat wurde ihm fälschlich zugeschrieben. Schade eigentlich, denn es demonstriert eine gewisse Mentalität sehr schön
https://en.wikipedia.org/wiki/Charles_Holland_Duell
Duell has become famous for, during his tenure as United States Commissioner of Patents, purportedly saying "Everything that can be invented has been invented."[2] However, this has been debunked as apocryphal by librarian Samuel Sass[3] who traced the quote back to a 1981 book titled "The Book of Facts and Fallacies" by Chris Morgan and David Langford.[4]