Hayek knew that the Mont Pèlerin Society had been made possible only through his close collaboration with Röpke. In the current dispute Röpke was allowing himself "to be used as Hunold's tool," Hayek wrote to John Van Sickle after the Turin meeting, and the two of them had become nothing better than "takeover artists." He decided that further collaboration was no longer possible. Röpke had, he believed, "succeeded in destroying in the course of fi fteen month [sic] what others have built up in the course of as many years."

Angus Burgin, The Great Persuasion, loc. 347