I am looking for a paper I am sure to have read a while ago, but cannot recall its title. The message was that we should not judge game theory (or economic theory in general?) by its ability as an "applied science", improving our understanding of the world. Instead, we should treat it like a beatiful garden or a piece of art, maintained by society for its sheer beauty. I would believe it was a classic game theorist (Rubinstein? Aumann?) but could not find the text. I am not refering to Friedman's "The Methodology of Positive Economics".
Hopefully the relatively sparse hints suffice... Thank you!