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Gottfried Wilhelm Leibniz

13 questions · Philosophy

Gottfried Wilhelm Leibniz, born in Leipzig in 1646, the son of a philosophy professor, taught himself Latin as a child in his late father's library and is widely considered the last universal genius: philosopher, mathematician, lawyer, historian, diplomat, engineer: 'when he hears of something, he has already half invented it,' contemporaries quipped admiringly. His day job was unspectacular: for four decades he served the Guelph dukes in Hanover as court counsellor and librarian, saddled with the endless history of the princely house. On the side, he changed the world: in Paris in the 1670s he invented the infinitesimal calculus: independently of Newton, which led to the most bitter priority dispute in the history of science; it was Leibniz's elegant notation, with the integral sign ∫ and the 'd', that prevailed. He built one of the first calculating machines for all four basic operations and described the binary number system of 0 and 1: the language of every computer today. In philosophy he conceived the 'Monadology': the world consists of indivisible, 'windowless' points of force, the monads, whose interplay is governed by a God-given 'pre-established harmony'. Famous (and notorious) is his 'Theodicy': God, who knows all possible worlds, created the 'best of all possible worlds': evil is its necessary shadow. Voltaire later mocked this optimism mercilessly in 'Candide'. Leibniz thought in networks before the word existed: some 1,300 correspondents across Europe, co-founder and first president of the Berlin Society of Sciences. Did you know that hardly anyone attended his funeral in Hanover in 1716? The court ignored the inconvenient scholar: today Hanover's university bears his name, and the Leibniz biscuit keeps it on Germany's supermarket shelves.

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In which city was Leibniz born in 1646?

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Leipzig

The son of a philosophy professor; he taught himself Latin as a child.

💡 Did you know? Leibniz was born in Leipzig in 1646 and as a child taught himself Latin from his father's library.

As what is Leibniz regarded, owing to his versatility?

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universal genius

Philosopher, mathematician, lawyer, historian, diplomat, engineer: often all at once.

💡 Did you know? Leibniz was a mathematician, philosopher, lawyer, diplomat and inventor all at once: a universal genius in the truest sense.

Which mathematical discipline did Leibniz invent independently of Newton?

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calculus

The priority dispute with Newton became the most bitter in the history of science: Leibniz's notation with ∫ and 'd' prevailed.

💡 Did you know? The notation of calculus still used today (with ∫ and dx) comes from Leibniz, not from his rival Newton.

Which number system did Leibniz describe (the language of every computer today)?

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the binary system

He even saw in it an image of creation: 1 as God, 0 as nothingness.

💡 Did you know? Leibniz described computing with only zeros and ones; the basis of every computer today, over 250 years before they were invented.

Which mechanical device did Leibniz build for all four basic arithmetic operations?

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a calculating machine

Using the stepped drum he invented: he tinkered for decades on working models.

💡 Did you know? His calculating machine was one of the first to handle all four basic operations, including multiplication and division.

What are the indivisible, 'windowless' units called of which the world consists, according to Leibniz?

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monads

Their interplay is governed by a God-given 'pre-established harmony': set out in the 'Monadology'.

💡 Did you know? For Leibniz the world consists of countless „monads“: indivisible, „windowless“ soul-units that nevertheless work together perfectly.

How does Leibniz's 'Theodicy' describe our reality?

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best of all possible worlds

God knew all possible worlds and chose the best: evil is its necessary shadow.

💡 Did you know? God, he held, created the best of all conceivable worlds: even if it contains evil, as a whole it is the best.

Which Enlightenment writer mocked Leibniz's optimism in the novel 'Candide'?

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Voltaire

After the Lisbon earthquake of 1755 the 'best of all worlds' seemed untenable: Dr Pangloss caricatures Leibniz.

💡 Did you know? Voltaire mocked this optimism bitingly in „Candide“; the character Pangloss is a caricature of Leibniz.

At which princely court did Leibniz serve four decades as counsellor and librarian?

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Hanover

Charged with the endless history of the princely house: which he never finished.

💡 Did you know? For four decades Leibniz served at the court of Hanover: where he laboured over a huge, never-finished history.

What is Leibniz's treatise justifying God in the face of evil called?

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Theodicy

The only major philosophical work he published himself (1710): the term became a technical concept.

💡 Did you know? The „Theodicy“ seeks to justify God in the face of the world's suffering: Leibniz coined the term.

Of which Prussian scientific institution was Leibniz the first president from 1700?

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the Berlin Academy

Founded in 1700 at his instigation: 'theoria cum praxi' was his motto.

💡 Did you know? Leibniz was the first president of the Berlin Academy of Sciences, which he helped to found.

What was attendance like at Leibniz's funeral in 1716?

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almost no one came

The court ignored the inconvenient scholar: today a university and a biscuit bear his name.

💡 Did you know? The Leibniz biscuit is so called because the Bahlsen factory stands in Leibniz's Hanover.

Gottfried Wilhelm Leibniz

Foto: Christoph Bernhard Francke · Public domain · Wikimedia Commons

Which philosopher is shown here?

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Gottfried Wilhelm Leibniz

Gottfried Wilhelm Leibniz was a German universal genius: philosopher, co-founder of calculus and forerunner of the binary system of computers.

💡 Did you know? Despite his achievements, few followed his coffin in 1716: he died largely forgotten.

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