The most thoroughgoing skeptic in the history of philosophy. He argued that reason cannot justify itself, causation cannot be proven, and the self is a fiction.
Hume was born in Edinburgh in 1711 and spent his twenties in a frenzy of writing that he later described as nearly driving him mad. The Treatise of Human Nature, published when he was twenty-eight, was the most radical work in the British empirical tradition, taking Locke and Berkeley's principles further than either had dared. He argued that our belief in cause and effect is nothing more than habit, that the self is not a substance but a bundle of passing impressions, and that morality is grounded in sentiment rather than reason. The book fell dead-born from the press, as he later wrote. He spent the rest of his life rewriting the same ideas in more accessible form, working as a librarian and diplomat, writing a bestselling history of England, and becoming the most famous philosopher of his age. He died in 1776, serenely, which his contemporaries found disturbing.
“Reason is, and ought only to be the slave of the passions, and can never pretend to any other office than to serve and obey them.”
“Custom, then, is the great guide of human life.”
“A wise man proportions his belief to the evidence.”
Published in 1748, a more accessible rewriting of the Treatise's central arguments. The most sustained philosophical examination of knowledge, causation, and miracles written in English.
Written when Hume was in his twenties and published in 1739-40. He later called it juvenile, but it is the most radical work in the British empirical tradition: reason is the slave of the passions, the self is a fiction, causation cannot be proven.
Hume took Locke's empiricism to its logical conclusion, showing that its principles undermined not only innate ideas but also causation and the self.
Hume took up Berkeley's empiricism and followed it past immaterialism into a thoroughgoing skepticism.
Hume inherited Bayle's doubt about the reach of reason, the claims of religion, and the possibility of certainty.
Hume and Smith were the closest of the Scottish Enlightenment thinkers. Smith's moral sentiments theory builds directly on Hume's account of sympathy.
Kant famously said that reading Hume awakened him from his dogmatic slumber. The Critique of Pure Reason is largely an answer to Hume's skepticism about causation.
Bentham built his calculus of happiness on the secular, empiricist ground that Hume had cleared.