“The purchase and sale of slaves is also in its form a purchase and sale of commodities. Without the existence of slaves, however, money cannot fulfil this function. If there is slavery, then money can be spent on the acquisition of slaves. But money in the hand of the buyer is in no way a sufficient condition for the existence of slavery.”

“The purchase and sale of slaves is also in its form a purchase and sale of commodities. Without the existence of slaves, however, money cannot fulfil this function. If there is slavery, then money can be spent on the acquisition of slaves. But money in the hand of the buyer is in no way a sufficient condition for the existence of slavery.”

— Karl Marx