Gordon S. Wood said this quote

The idea of labor, of hard work, leading to increased productivity was so novel, so radical, in the overall span of Western history that most ordinary people, most of those who labored, could scarcely believe what was happening to them. Labor had been so long thought to be the natural and inevitable consequence of necessity and poverty that most people still associated it with slavery and servitude. Therefore any possibility of oppression, any threat to the colonists' hard earned prosperity, any hint of reducing them to the povery of other nations, was especially frightening; for it seemed likely to slide them back into the traditional status of servants or slaves, into the older world where labor was merely a painful necessity and not a source of prosperity.