“Unless you die young, it’s difficult to be a hero for ever. Heroes are commercialised. They succumb to what Norman Mailer called ‘exhaustion of the will’. Or they simply go out of fashion.”

A quick Google search reveals at least one instance of the phrase in a 1955 interview with Mailer by Lyle Stuart.

Lyle Stuart, "An Intimate Conversation with Norman Mailer," from Expose #49 (December 1955) in ed. J. Michael Lennon, Conversations with Norman Mailer. via Google Books

Mailer, Stuart, and McGuirk are all using this phrase in relation to the individual, but it seems to me equally applicable, if not more so, to upstart institutions, which inevitably, it seems, for a whole host of reasons, too often focus more on what they have done in the past, often successfully, than their motivating mission. When and how does a vision with unknown consequences that draws one along become a track that is pushing one forward?

Pierre Huyghe, "Or," 1995, Venice Art Biennial, 2007