Thomas Reid

Scottish philosopher (1710–1796)

The publication of An Inquiry into the Human Mind: on the Principles of Common Sense in 1764 marked a turning point in the intellectual history of the United Kingdom. Thomas Reid, a Protestant minister turned academic, challenged established skeptical traditions by proposing that common sense serves as the essential bedrock for all rational thought, perception, and human belief.

Early Life and Academic Formation

Born in 1710 in the manse at Strachan, Thomas Reid pursued his early education at Kincardine Parish School and O'Neil Grammar School. He matriculated at Marischal College in 1723, graduating with an M.A. in 1726. Although he was licensed to preach by the Church of Scotland in 1731, his career trajectory shifted significantly in 1752 when he accepted a professorship at King's College, Aberdeen. During this period, he co-founded the Aberdeen Philosophical Society, locally recognized as the 'Wise Club', which fostered rigorous literary and philosophical discourse.

THE FREE TEST
How high is yours?

Twenty questions, eight minutes on the clock, and a percentile measured against everyone who has taken it. No sign-up.

Take the IQ test →

Philosophy of Common Sense

Reid established the movement known as Scottish Common Sense Realism, positioning himself as a primary critic of David Hume. While Hume and other early modern figures argued that knowledge was restricted to mental ideas, Reid asserted that the structure of the human mind necessitates a belief in an external world. He argued that philosophical inquiry requires an implicit agreement on foundational first principles, such as the existence of external objects and the reliability of sensory input. For Reid, rejecting these principles was incompatible with rational debate.

Career at the University of Glasgow

In 1764, Reid succeeded Adam Smith as the Professor of Moral Philosophy at the University of Glasgow. He held this chair until his resignation in 1781. During his tenure and subsequent retirement, he codified his lectures into two major volumes: Essays on the Intellectual Powers of Man, published in 1785, and Essays on the Active Powers of the Human Mind, released in 1788. These works addressed ethics, the nature of free will, and the behavioral tendencies of the mind, bridging the gap between epistemology and practical conduct.

Legacy and Institutional Contribution

Beyond his writing, Reid contributed to the formalization of academic life in Scotland. In 1783, he became a joint founder of the Royal Society of Edinburgh. His influence remained prominent well into the 19th century, often overshadowing his contemporaries in terms of institutional impact. Reid died in 1796 in Glasgow, where he was interred at Blackfriars Church. His contributions to metaphysics and ethics continue to inform the study of moral philosophy and theory of action.

Fast facts

Questions readers ask

What was Thomas Reid's primary critique of David Hume?

Reid rejected Hume's skepticism regarding the external world, arguing that the mind possesses inherent principles of common sense that make belief in reality a necessary foundation for all reason.

What subjects did Reid cover in his later essays?

His 1788 work, Essays on the Active Powers of the Human Mind, focused on human behavior, free will, and the ethical principles governing moral decision-making.

Achievements

Compare with the greats

Rembrandt vs Vincent Van GoghCarl Sagan vs Srinivasa RamanujanHippocrates vs Niels BohrFriedrich Nietzsche vs Michael Faraday
See the IQ Rankings →All comparisons →

Child prodigies

Emily BearEmily BearPlayed the White House at six, won a Grammy at twenty, scored a…Summer McintoshOlympic finalist at 14, world-record holder and triple Olympic…Laurent SimonsGraduated University at 11 — Belgian Prodigy with Electrical…Boris BeckerBoris BeckerWon Wimbledon at 17, the youngest men's Grand Slam champion ever
Child prodigies →

Play & come back tomorrow

Daily Genius Challenge · Guess the genius
Scottish physicist who unified electricity, magnetism and light into one set of equations.
Tap your answer ↓
Which Genius Are You? Free IQ Test