(and quoted here, too)

From David Warsh at Economic Principals: That Fateful Year, quoted by Gavin Kennedy at Adam Smith's Lost Legacy:

And at some point, I finally I realized who it was Martin so persistently reminded me. Not David Graeber, the prolix London anthropologist whose book Debt: The First 5000 Years helped inspire the Occupy Wall Street movement. Like him, Martin attaches inordinate significance to a chicken-and-egg theory of the primordial ancient origins of credit. The two are convinced that no barter economy ever existed,  that symbolic money, or at least ledger debt, preceded trade. Whatever.

File that under best put-downs.