"Some may wish to argue that Hayek was simply born with a sort of natural pessimism or cynicism, and that this generated his long standing belief in the inherent limitations that humans face when they try to intervene in social phenomena. Perhaps. But it is also possible that this view was the product of his having come of age during the final collapse of an already broken-down empire, of having experienced the multiple forms of disaster that surrounded postwar Vienna and enveloped interwar central Europe, and of having witnessed the failures of various high-minded social experiments to achieve anything like what their exponents had promised. In bearing witness to so much tragedy Hayek was again very much a part of the larger Austrian tradition. His famed ‘‘epistemic pessimism’’ may well have been another result of that larger experience."
January 1, 1970
https://en.wikiquote.org/wiki/Bruce_Caldwell_(economist)