Did Newton's laws of the heavens make people hope for laws of society?
Newton wrote about planets, not politics. Yet a whole generation read his physics and wondered whether people might obey laws as steady as gravity.
▶ Start the storyIn a sense, yes. Newton's own contributions were mainly in physics and mathematics, but his picture of a universe governed by rational, understandable laws laid the foundation for many strands of Enlightenment thought. If the sky followed laws that human minds could discover, some thinkers reasoned, perhaps human affairs did too.
Historian Ritchie Robertson describes the Enlightenment as a grand program offering a "science" of society modelled on the physical laws of Newton, with "social science" seen as the instrument of human improvement. David Hume, likely inspired by Newton's methods, was a strong adherent of Newtonian in his studies of moral phenomena.
The ideas travelled through people. Voltaire, exiled in England from 1726 to 1729, met devotees of the Newtonian system and later brought their ideas to France in books that popularised Newton's methods and philosophy. The Marquise du Châtelet translated the Latin into French, and her version remained the definitive French one into the 21st century.
But Newton himself was no secular rationalist. He was deeply religious, took Genesis literally, and held that God set the mechanical laws in place at the beginning but could alter the mechanism whenever he chose. Enlightenment thinkers borrowed his method and his confidence more than his theology.
Newton himself
- Deeply religious, took Genesis literally
- God set mechanical laws but could alter them
- Hypotheses have no place in
Enlightenment thinkers
- Borrowed his method and confidence
- Hoped for a "science" of society
- Hume used Newtonian on morals
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Recap
Enlightenment thinkers borrowed Newton's method and confidence, reasoning from observation, in the hope of a science of society.
💡 A trick to remember it · If apples and planets follow the same rulebook, maybe so do crowds and kings: that was the daring hope.
Surprising fact · Newton himself was deeply religious and believed God could alter the cosmic mechanism at any time.
Connects to
- 🪐 How did calculus let Newton predict motion and the orbits of planets?
- 🕯️ What did Kant mean when he told people to "dare to know"?
- ☕ How did coffeehouses and anonymous contests spread the Enlightenment past the aristocracy?
- 🦢 Can you ever prove the future will be like the past?
- 🛰️ Why do spacecraft have to slow down to catch up?
Sources (3)
No source, no claim. Every fact in this lesson (13 claims) cites at least one of these.