The average man of the present age … does not want to be a sentimentalist in his endeavors; he wants some measure for purposeful activity; he wants to feel that through the world some increasing purpose runs. … But since his metaphysic calls only for magnitude and number, since it is becoming without a goal, it is not a source of distinctions in value. It is a system of quantitative comparison. Its effect therefore has been to collapse the traditional hierarchy and to produce economic man, whose destiny is mere activity.

p. 51. - Ideas have Consequences (1948)