"We went through one of the big automobile factories to-day.... The foundry interested me particularly. The heat was terrific. The men seemed weary. Here manual labour is a drudgery and toil is slavery. The men cannot possibly find any satisfaction in their work. They simply work to make a living. Their sweat and their dull pain are part of the price paid for the fine cars we all run. And most of us run the cars without knowing what price is being paid for them.... We are all responsible. We all want the things which the factory produces and none of us is sensitive enough to care how much in human values the efficiency of the modern factory costs."
January 1, 1970
https://en.wikiquote.org/wiki/Manufacturing