by Georg Christoph Lichtenberg
1,007 fragments from the Waste Books of Georg Christoph Lichtenberg, 1742–1799. Professor of experimental physics at Göttingen, secret aphorist of the German Enlightenment, the man Wittgenstein, Schopenhauer, Tolstoy, Nietzsche, Freud, and Wittgenstein again all kept on the desk.
tags: lichtenberg, aphorism, sudelbucher, waste-books, physics, enlightenment, german, satire
FROM THE
SUDELBÜCHER
- BEING THE PRIVATE WASTE-BOOKS OF -
M D C C X L I I · M D C C X C I X
1742 - 1799
Professor of Experimental Physics
Georg-August-Universität, Göttingen
Notebooks A - L · written 1765 - 1799 · published posthumously, 1800–1802
Sudelbuch: a merchant’s scrap-ledger, used to record provisional thoughts before transfer to the master book. The transfer was never made.
1007 entries · arrow-keys to turn pages
“The great trick of regarding small deviations from the truth as the truth itself-a trick upon which the whole of differential calculus is based-is also the basis of our ingenious thoughts, where the whole thing would often collapse if we were to consider the deviations with philosophical rigor.”
Georg Christoph Lichtenberg was born in 1742 in a small Hessian village, the youngest of seventeen children of a Lutheran pastor, and grew up to become the first man in German-speaking Europe to be appointed Professor of Experimental Physics. He held the chair at Göttingen for thirty years. He invented the Lichtenberg figures - the branching electrical discharge patterns now named after him - and corresponded with Goethe, Kant, and Hume.
He also kept private notebooks. He called them Sudelbücher - a merchant's term for the scrap-ledger in which a shopkeeper recorded daily transactions before transferring the worthwhile entries to the master ledger. Lichtenberg never made the transfer. The notebooks accumulated, marked A through L, from 1765 until his death in 1799. He published almost none of them in his lifetime; they appeared posthumously, in scattered editions, and were not assembled in full until the twentieth century.
What is in them is roughly what a brilliant Enlightenment professor would write down when he was thinking aloud and assumed nobody was listening. Physics experiments. Notes on books. Sharp observations of colleagues. Satire of theology. Self-criticism. Mathematical conjectures. Diary fragments. And - the part that has kept the notebooks alive for two and a half centuries - aphorisms of an unprecedented compression and accuracy.
Lichtenberg did not invent the aphorism, but he made it do something it had not quite done before. The French moralists - La Rochefoucauld, Vauvenargues, Chamfort - used aphorisms to deliver verdicts, usually about the human heart. Lichtenberg used them to think. A typical Lichtenberg fragment is closer to a working note than to a pronouncement: he is testing a thought, sometimes finding it wanting, sometimes leaving it unresolved. The reader watches an unusually clear mind reasoning in real time.
This is why the Waste Books survived as something other than a collection of bons mots. They are a textbook in attention. Most pages contain at least one moment where you realise that nothing else you have read this year has been put as exactly. Wittgenstein read him constantly. Tolstoy translated him. Nietzsche named him as one of the four prose stylists in German worth reading.
The fragments below are tagged across five themes - Mind, Science, Books, Religion, People - but the tags are loose. Lichtenberg's defining quality is that almost every fragment touches more than one. A note on perception is also a note on physics; a note on a sermon is also a note on character. The classification is provided as a navigation aid, not a verdict.
The numbers in brackets are Lichtenberg's own - the position of the fragment within its notebook in the standard German edition. Where they survive in the Tester translation, they survive here.
- BEGINNING THE -
SUDELBUCH M
CONTINUED FROM HEFT L · ABANDONED MDCCXCIX
MMXXVI
opened 2026
Five forms of entry, after the master’s own. Untransferred. Local, browser-only, accumulating. The transfer to a master ledger is up to the reader, as it was up to him - and as he never made it, neither must you.
For two and a half centuries the Sudelbücher have been read as a finished thing - an inheritance to be paged through. Lichtenberg would have rejected that posture. He was clear: the books were not for reading. The books were for writing. A waste-book is the form a working mind takes when it is not yet sure what it thinks. The exercises below are five modes of waste-book entry, drawn from what he actually did.
Notebooks A through L belong to Göttingen. Notebook M belongs to whoever opens it.
The original move: one fragment a day, untagged and untransferred. The discipline is the daily addition, not the brilliance of any one entry.
One fragment a day. Untagged, untransferred, unpolished - the merchant’s scrap ledger in the original sense. The discipline is putting it down. The discipline is notediting it after. Each entry is numbered M.n, continuing Lichtenberg’s own L-series.
After the first thought, write its opposite. Lichtenberg did this constantly - whole pages where every entry is the inversion of the entry above. Sometimes the counter survives the test better than the original.
Lichtenberg’s recurring habit: after the first thought, write its opposite, in equal seriousness. Sometimes the counter holds better than the original. Sometimes both fail and a third thing turns up. State the thesis - then state the counter. Mark afterwards which one survived.
The figures Lichtenberg discovered in 1777 were the traces of electrical discharge across a dust-covered plate: branching from a single point. A working fragment does the same. State the trunk; trace three branches.
The figures Lichtenberg discovered in 1777 were the trace of an electrical discharge across a dust-covered plate. They begin at a point and branch outward. So does a fragment that is doing real work. State a trunk - then write three branches of it. The shape is the discipline.
He held the first chair of experimental physics in German-speaking Europe. Most questions worth asking, he thought, can be settled by an experiment small enough to be tried. Propose the question, the experiment, the prediction. Return later and mark the outcome.
Lichtenberg held the first chair of experimental physics in Germany. He had a physicist’s instinct: most questions can be settled, in principle, by a small experiment small enough to be tried. State the question, the experiment, the prediction. Later, return and mark whether the world co-operated.
A reader’s waste-book is also the marks made in someone else’s. Paste a sentence read elsewhere; mark it ✦ · ◇ · ✕; gloss it in your own voice. The marks over a year are the bibliography of your attention.
Lichtenberg’s books are reported to have been entirely marked up in his hand. Paste a sentence you have read elsewhere - in a paper, a book, a thread - and mark it: ✦ keep · ◇ curious · ✕ no. A one-line gloss in your own voice. Over a year the marks become the bibliography of your attention.
✦ memory · ☽ night · ∞ loops · ❧ margins · ◆ proof
a personal library in perpetual arrangement · MMXXVI