Traceable Library

Explore the corpus of thinkers on prokopton42.com

We do not always look for a work, a text, or a passage in the same way. Browse by work as you would in a traditional library, travel through time, follow a semantic concept, or go straight to a precise excerpt. This Library exists to support practice and deeper study by bringing old texts into contact with daily experience and present questions.

Works: 305
Authors: 94
Passages: 89,767

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Corpus works: 259
Private works: 46
Private records: 56
Private excerpts: 20,006
Text representations: 223,819
Editions and translations: 849
Languages: 17
Works in French and English: 259
Multilingual works: 259
Tracked concepts: 9
Estimated sentences: 1,456,557
Words: 27,541,029

A representation is one language version of a canonical passage. Private excerpts come from source files. Sentence count is estimated from punctuation.

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Works

Books, collections and works from the Private collection share this shelf. Each card keeps its editions and sources. Browse the 46 private works →

Photorealistic editorial illustration of Abraham Lincoln Papers: Incoming and Contextual Documents in the Prokopton42.com Library

Abraham Lincoln Papers: Incoming and Contextual DocumentsCorrespondents and archival record

Work

Abraham Lincoln Papers: Incoming and Contextual Documents

Incoming letters, petitions, and administrative records preserve the voices of people who petitioned, informed, or challenged Lincoln. The archive reveals the pressures of a wartime presidency without attributing his correspondents’ words to the president.

What you will learn

Composition: 1833-1916
Editions / translations: 2026
Languages: English · French
Extent: 19,210 passages · 7,989,852 words

Photorealistic editorial illustration of Abraham Lincoln Papers: Lincoln-Authored Documents in the Prokopton42.com Library

Abraham Lincoln Papers: Lincoln-Authored DocumentsAbraham Lincoln

Work

Abraham Lincoln Papers: Lincoln-Authored Documents

Letters, speeches, proclamations, and notes follow Lincoln from Illinois politics through the Civil War. They show his language of Union, slavery, emancipation, executive power, and reconciliation taking shape under pressure.

What you will learn

Composition: 1833-1865
Editions / translations: Dates to be documented
Languages: English · French
Extent: 982 passages · 326,103 words

Photorealistic editorial illustration of Academica in the Prokopton42.com Library

AcademicaCicero

Work

Academica

In the surviving fragments of the Academica, Cicero stages the conflict between dogmatic certainty and sceptical inquiry. He asks what criterion can identify a true impression and how action remains possible when secure knowledge is disputed.

What you will learn

Composition: 45 BCE
Editions / translations: Dates to be documented
Languages: Latin · English · French
Extent: 69 passages · 215,055 words

Private collection · 1 source · PDF cover

A Calendar of Wisdom, by Leo Tolstoy, Translated and Edited by Peter Sekirin

Leo Tolstoy, translated and edited by Peter Sekirin; attributed source thinkers retained

Tolstoy arranges a year of short readings around love, faith, moral work, death, and the refusal of violence. His own formulations stand beside texts attributed to named authors and traditions.

Languages: French · English
Indexed excerpts: 377

By consulting this text, you confirm that you may use it for personal and educational purposes. Do not reproduce its content. If the book helps you, buy it to support the author or rights holders.

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Photorealistic editorial illustration of Against the Ethicists, Book XI of Against the Learned in the Prokopton42.com Library

Against the Ethicists, Book XI of Against the LearnedSextus Empiricus

Work

Against the Ethicists, Book XI of Against the Learned

In Book XI, Sextus confronts doctrines of good, evil, and the art of living with disagreements among peoples and philosophers. Suspension removes the claimed self-evidence of natural values that conflict prevents from being established.

What you will learn

Composition: c. 180-220 CE
Editions / translations: Dates to be documented
Languages: Ancient Greek · English · French
Extent: 257 passages · 16,268 words

Photorealistic editorial illustration of Against the Logicians, Books VII-VIII of Against the Learned in the Prokopton42.com Library

Against the Logicians, Books VII-VIII of Against the LearnedSextus Empiricus

Work

Against the Logicians, Books VII-VIII of Against the Learned

In the books devoted to logicians, Sextus confronts theories of the criterion of truth, signs, demonstration, and propositions. Rival doctrines undermine one another until Pyrrhonian suspension becomes possible.

What you will learn

Composition: c. 180-220 CE
Editions / translations: Dates to be documented
Languages: Ancient Greek · English · French
Extent: 927 passages · 63,717 words

Photorealistic editorial illustration of Against the Physicists, Books IX-X of Against the Learned in the Prokopton42.com Library

Against the Physicists, Books IX-X of Against the LearnedSextus Empiricus

Work

Against the Physicists, Books IX-X of Against the Learned

Sextus tests physicists’ claims about gods, causes, wholes and parts, place, time, motion, and number. Each concept encounters competing definitions and incompatible consequences.

What you will learn

Composition: c. 180-220 CE
Editions / translations: Dates to be documented
Languages: Ancient Greek · English · French
Extent: 791 passages · 51,318 words

Photorealistic editorial illustration of Against the Professors, Books I-VI of Against the Learned in the Prokopton42.com Library

Against the Professors, Books I-VI of Against the LearnedSextus Empiricus

Work

Against the Professors, Books I-VI of Against the Learned

The first six books of Against the Learned examine grammar, rhetoric, geometry, arithmetic, astrology, and music. Sextus targets these disciplines’ theoretical claims while sometimes distinguishing useful practices from disputed dogmatic foundations.

What you will learn

Composition: c. 180-220 CE
Editions / translations: Dates to be documented
Languages: Ancient Greek · English · French
Extent: 757 passages · 50,554 words

Photorealistic editorial illustration of Alexander in the Prokopton42.com Library

AlexanderPlutarch

Work

Alexander

Alexander observes character in action and tests moral rules against concrete situations.

What you will learn

Composition: late 1st to early 2nd century CE; internal order uncertain
Editions / translations: Dates to be documented
Languages: Ancient Greek · English · French
Extent: 377 passages · 30,354 words

Photorealistic editorial illustration of Algarotti’s Sir Isaac Newton’s Philosophy Explained for the Use of the Ladies, Translated by Elizabeth Carter in the Prokopton42.com Library

Algarotti’s Sir Isaac Newton’s Philosophy Explained for the Use of the Ladies, Translated by Elizabeth CarterFrancesco Algarotti

Edition or translation awaiting alignment

Algarotti’s Sir Isaac Newton’s Philosophy Explained for the Use of the Ladies, Translated by Elizabeth Carter

Francesco Algarotti casts Newtonian physics as polite dialogues concerned especially with light, colour, and attraction. Elizabeth Carter supplies the English translation; the work remains Algarotti’s, including the strategies and assumptions of its gendered popularization.

What you will learn

Composition: 1738-1739
Editions / translations: Dates to be documented
Languages: English · French
Extent: 627 passages · 80,518 words

Photorealistic editorial illustration of Ancient Biographical Testimonia on Musonius Rufus in the Prokopton42.com Library

Ancient Biographical Testimonia on Musonius RufusMusonius Rufus

Fragments or testimony

Ancient Biographical Testimonia on Musonius Rufus

This dossier gathers ancient accounts of Musonius Rufus’ life, exiles, teaching, and reputation. The witnesses present the philosopher through other authors’ perspectives; they form neither autobiography nor a work written by him.

What you will learn

Composition: testimonies from the 1st to 3rd centuries CE
Editions / translations: Dates to be documented
Languages: Multilingual · English · French
Extent: 4 passages · 1,034 words

Photorealistic editorial illustration of Ancient testimonia on Carneades in the Prokopton42.com Library

Ancient testimonia on CarneadesCarneades

Fragments or testimony

Ancient testimonia on Carneades

One hundred carrier passages follow Carneades from criticism of certain apprehension to probable judgment without inventing a book for him.

What you will learn

Composition: carriers from the 1st century BCE to the 3rd century CE; testimonia on Carneades
Editions / translations: Dates to be documented
Languages: Ancient Greek · Latin · French · English
Extent: 100 passages · 35,730 words

Photorealistic editorial illustration of An Essay Concerning Human Understanding in the Prokopton42.com Library

An Essay Concerning Human UnderstandingJohn Locke

Work

An Essay Concerning Human Understanding

The Essay examines the origin and composition of ideas, personal identity, and the limits of knowledge.

What you will learn

Composition: 1689-1700; revised lifetime editions
Editions / translations: Dates to be documented
Languages: English · French
Extent: 1,114 passages · 257,071 words

Photorealistic editorial illustration of A New Year's Word in the Prokopton42.com Library

A New Year's WordFriedrich Nietzsche

Work

A New Year's Word

A New Year's Word must be read through its period, genre, and precise polemical target. Its striking formulations do not replace the movement of the text.

What you will learn

Composition: 1875, private publication
Editions / translations: Dates to be documented
Languages: German · English · French
Extent: 1 passage · 627 words

Photorealistic editorial illustration of Answers to Objections Concerning the Christian Religion, by Elizabeth Carter in the Prokopton42.com Library

Answers to Objections Concerning the Christian Religion, by Elizabeth CarterElizabeth Carter

Work

Answers to Objections Concerning the Christian Religion, by Elizabeth Carter

Elizabeth Carter answers a friend’s doubts after a close rereading of the Gospels. She defends Christianity’s credibility while freely stating the moral and textual difficulties that, in her view, require reasoned answers.

What you will learn

Composition: before 1806; published posthumously in 1807
Editions / translations: Dates to be documented
Languages: English · French
Extent: 69 passages · 18,442 words

Photorealistic editorial illustration of Apology of Socrates in the Prokopton42.com Library

Apology of SocratesPlato

Work

Apology of Socrates

Socrates defends himself before an Athenian jury against charges of impiety and corrupting the young. Plato composes a courtroom speech in which philosophical examination, divine mission, and refusal to flatter the audience put an entire life at stake.

What you will learn

Composition: c. 399-390 BCE
Editions / translations: Dates to be documented
Languages: Ancient Greek · English · French
Extent: 26 passages · 11,771 words

Private collection · 1 source · PDF cover

A Rulebook for Arguments, by Anthony Weston

Anthony Weston

Anthony Weston breaks argumentation into practical rules: establish reliable premises, choose relevant examples, address objections, and make the path to a conclusion explicit. The book serves both writing and critical evaluation.

Languages: French · English
Indexed excerpts: 169

By consulting this text, you confirm that you may use it for personal and educational purposes. Do not reproduce its content. If the book helps you, buy it to support the author or rights holders.

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Private collection · 1 source · PDF cover

A Short Treatise on the Inner Life, by Frédéric Lenoir, French Edition

Frédéric Lenoir

Frédéric Lenoir begins from a simple proposition: existence is given, living must be learned. He draws from Confucius, Epicurus, Plotinus, Montaigne, Spinoza, and other traditions for practices of self-knowledge, discernment, presence, silence, choice, love, and forgiveness.

Languages: French · English
Indexed excerpts: 196

By consulting this text, you confirm that you may use it for personal and educational purposes. Do not reproduce its content. If the book helps you, buy it to support the author or rights holders.

Open the record and choose an edition →