Thomas Reid
A Scottish philosopher who launched a robust, common-sense defense of everyday reality against the skeptical doubts of his more famous contemporary, David Hume.
1710–1796 (age 86)·Scottish philosopher·Birthday: April 26
Biography
In the rarefied air of 18th-century philosophy, Thomas Reid offered a bracing gust of Scottish pragmatism. A clergyman and professor, he was initially an admirer of David Hume, but found Hume's radical skepticism—the idea that we can't truly know the external world—intellectually and morally untenable. Reid's response was to build the philosophy of Common Sense. He argued that our basic perceptions of the world—like believing objects exist or that we have free will—are not inferences or illusions, but fundamental principles hardwired into human nature. We are justified in trusting them because they are the necessary foundation for all reasoning, including skeptical reasoning itself. This seemingly simple idea had profound implications, challenging the dominant ideas of Locke and Hume and shifting philosophical focus toward the active powers of the mind. As a founder of the Scottish School of Common Sense, Reid's influence spread across Europe and America, providing an intellectual framework that valued ordinary experience as the starting point for serious thought.
#1 When Thomas Was Born
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Thomas's Life & Times
The world at every milestone
1710Born
1715Started school
1723Became a teenager
1726Could drive
1728Could vote
1731Turned 21
1740Turned 30
1750Turned 40
1760Turned 50
1770Turned 60
1780Turned 70
1790Turned 80
1796Died at 86
Key Achievements
- Founded the Scottish School of Common Sense philosophy, a major movement in response to the skepticism of David Hume.
- Served as the Professor of Moral Philosophy at the University of Glasgow, succeeding Adam Smith in the role.
- Published 'An Inquiry into the Human Mind on the Principles of Common Sense' (1764), his seminal work challenging Humean ideas.
Did You Know?
He was a minister in the Church of Scotland before turning to academic philosophy.
His philosophy was particularly influential in early American intellectual circles, including at Princeton University.
He corresponded with and was respected by Immanuel Kant, who credited Reid with awakening him from 'dogmatic slumber'.
“The sceptic asks me, Why do you believe the existence of the external object which you perceive? This belief, sir, is none of my manufacture; it came from the mint of Nature.”
