(noun) An institution or social practice of owning human beings as property, especially for use as forced laborers.
"Those who deny freedom to others deserve it not for themselves, and, under a just God cannot retain it."
"You may choose to look the other way but you can never say again that you did not know."
"Whenever I hear anyone arguing for slavery, I feel a strong impulse to see it tried on him personally."
"I prefer dangerous freedom over peaceful slavery."
"Excess of liberty, whether it lies in state or individuals, seems only to pass into excess of slavery."