… is from page 208 of the fourth and latest economics murder mystery by Marshall Jevons, The Mystery of the Invisible Hand (2014):
And yet as he looked around at the professors in the faculty club at Monte Vista University, he saw a great paradox. Many of these professors were anti-market. But their anti-market leanings were not hindered for a single moment by the knowledge that their daily necessities were being made available, both tomorrow and into the future, courtesy of that self same free market.