Thoughts upon slavery

In Short

This concise eighteenth-century treatise defines domestic slavery, examines its historical roots, and dismantles the transatlantic slave trade. Drawing on travel accounts, legal commentary, and moral philosophy, the author details the peaceful societies of West Africa, the violent methods used to kidnap their inhabitants, the horrors of the Middle Passage, and the brutal laws maintaining plantation bondage. The text rejects the argument of economic necessity, insisting that human law cannot override natural justice. It has endured as a pivotal, uncompromising abolitionist document that directly confronts merchants, captains, and slaveholders with their own moral guilt.

The Story

The argument opens by establishing what slavery is: an obligation of perpetual service that reduces a human being to the status of livestock, passing automatically from parent to child. While mild domestic service exists, chattel slavery gives one human arbitrary power over another. The work traces how this practice spread from ancient societies and declined in Europe after the spread of Christianity, only to be revived by European powers in the Americas.

To counter claims that enslavement rescues people from a wretched existence, the text surveys the West African coast. Citing first-hand accounts from European observers, it describes a fertile, well-cultivated land supporting industrious populations like the Jalofs, Fulis, and Mandingos. These communities practice advanced agriculture, trade, and metalwork, maintaining orderly governments and caring for their elderly and disabled.

The narrative shifts to how slaves are procured. European traders initialed direct kidnappings, but soon corrupted native rulers by introducing alcohol and avarice, inciting wars specifically to capture prisoners. Excerpts from sea captains' and surgeons' journals illustrate the resulting destruction, showing towns burned to the ground and thousands slain in battles manufactured for profit. Once captured, victims are stripped naked, branded with hot irons, and crammed into crowded ships where tens of thousands perish from heat, thirst, and disease during the Middle Passage and initial seasoning.

Upon reaching American plantations, enslaved people face severe torture, including mutilation and whippings, authorized by colonial laws in Virginia, Jamaica, and Barbadoes that treat them as mere property. The author addresses the legal and philosophical justifications for this system, citing legal scholar William Blackstone to prove that neither war, contract, nor birth can establish a valid right of ownership over another person. Human laws cannot transform injustice into virtue.

Finally, the text refutes the defense of economic necessity. Wealth gained through cruelty is not national glory, and white labor could adapt to warm climates if necessary. The author directly addresses ship captains, merchants, and plantation owners, holding them personally accountable for murder and robbery. The work concludes with a passionate appeal for immediate emancipation, urging readers to cast off all compulsion, treat others with natural justice, and pray for God to burst the chains of the oppressed.

How It Unfolds

Defining perpetual bondage The text distinguishes true chattel slavery from ordinary domestic service, detailing how it strips individuals of property rights, subjects them to physical abuse, and extends down through generations.

Surveying West Africa Drawing on historical observers, the narrative presents the African coast as rich, fertile, and populated by civilized, highly skilled societies with established legal systems and thriving arts.

Exposing the trade's violence The work documents how European traders incite wars and kidnap peaceful populations, citing ship logs that detail burnt villages and thousands of deaths orchestrated to secure captives.

Describing the passage and laws The text lays bare the horrors of ship transport and quotes colonial statutes from Barbadoes and Virginia to show how legal systems codify torture and permit murder.

Dismantling legal defenses Using legal theory, the argument proves that neither conquest, self-sale, nor inheritance provides a moral foundation for ownership, rendering all slaveholding contrary to natural law.

Refuting economic necessity The author rejects the idea that national wealth justifies atrocity, asserting that honest poverty is superior to riches bought with the blood of fellow human beings.

Calling perpetrators to account The text directly confronts slaveholders and traders, warning of divine judgment and demanding the immediate release of all enslaved people without regard to financial loss.

The People

• John Wesley — The author and moral advocate who synthesizes legal history, travel literature, and Christian ethics to construct an unyielding argument against slaveholding. He demands immediate action, refusing to accept economic profit or human law as valid excuses for cruelty.
• Judge Blackstone — The legal scholar whose commentary is cited to demonstrate that slavery has no foundation in natural law, disproving claims that captivity in war or voluntary contract can grant one person ownership over another.
• Monsieur Brue and Monsieur Bene — European travel writers whose first-hand accounts of West Africa are used to show that the region is fertile, highly cultivated, and inhabited by peaceful, skilled societies.
• The King of Barsalli — An African ruler cited as an example of how European traders corrupted local governance, incited conflicts, and plundered villages to exchange captives for imported goods and brandy.
• The Enslaved Africans — The central subjects of the text, depicted not as natural inferiors, but as victims of deliberate systemized violence who retain their inherent right to human liberty from the moment of birth.

In Its Voice

"Allows the master to alienate the Slave, in the same manner as his cows and horses."

"Better is honest poverty, than all the riches bought by the tears, and sweat and blood of our fellow-creatures."

"Liberty is the right of every human creature, as soon as he breathes the vital air."

What It's Really About

The text is a direct assault on the moral and legal foundations of human bondage. It argues that natural justice and basic human empathy precede any legal code or commercial interest. By systematically reviewing the realities of African culture, the mechanics of kidnapping, and the brutality of plantation law, it demonstrates that slavery is not a benign institution or a economic necessity, but a systemic crime. The core thesis is that no human law can alter the fundamental nature of right and wrong, and that those who profit from the trade bear direct responsibility for murder, robbery, and the destruction of human liberty.

Why Read It Today

This short work remains a powerful example of eighteenth-century persuasive prose and moral advocacy. Readers interested in history, ethics, and civil rights will appreciate its direct style and clear structure. The text does not rely on vague sentiment; it builds its case using specific evidence, including legal statutes, travel journals, and economic arguments.

The reading experience is intense and uncompromising. The prose moves swiftly from empirical description to direct personal confrontation, demanding that the reader evaluate the ethics of supply chains and systemic violence.

While the text contains historical terminology and period-specific spellings, it presents few stylistic barriers. The graphic descriptions of plantation punishments and shipboard conditions make for sobering reading, reflecting the harsh reality of the period's abolitionist literature. Its lasting impact lies in its refusal to compromise with economic expediency, offering an enduring model of how to confront systemic injustice using reason, evidence, and clear moral principle.