He that has a servant, made so wrongfully, and knows it to be so, when he treats him otherwise than a free man, when he reaps the benefit of his labour, without paying him such wages as are reasonably due to free men for the like service; these things, though done in calmness, without any shew of disorder, do yet deprave the mind, in like manner, and with as great certainty, as prevailing cold congeals water.