… is from page 46 of Deirdre McCloskey’s superb 2022 volume, Beyond Positivism, Behaviorism, and Neoinstitutionalism in Economics (footnote deleted; original emphasis):
I give a good many talks to audiences of well-meaning and well-educated lay people, many of whom have had a course or two in academic economics. I write a good many reviews of books by well-meaning scholars without PhDs in economics, such as Robert Reich and Michael Sandel. I engage in a good many academic disputes with well-meaning scholars with PhDs in economics, such as Thomas Piketty and Marianna Mazzucato. None of these fine people has the slightest understanding of elementary economics.