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.

Photorealistic editorial illustration of Fundamental Ideas and Problems of the Theory of Relativity, Nobel Lecture in the Prokopton42.com Library

Fundamental Ideas and Problems of the Theory of Relativity, Nobel LectureAlbert Einstein

Work

Fundamental Ideas and Problems of the Theory of Relativity, Nobel Lecture

Einstein retraces the problems leading from Lorentz transformations to special relativity and then to a theory of gravitation based on spacetime geometry. The lecture emphasizes physical principles rather than only the result recognized by the prize.

What you will learn

Composition: 11 July 1923
Editions / translations: Dates to be documented
Languages: English · French
Extent: 14 passages · 3,579 words

Photorealistic editorial illustration of Geometry and Experience, French Translation in the Prokopton42.com Library

Geometry and Experience, French TranslationAlbert Einstein

Work

Geometry and Experience, French Translation

Einstein asks how axiomatic geometry, valid by deduction, can describe physical bodies and measurements. This French translation clarifies the difference between a formal system, practical geometry, and the choice of a framework for relativity.

What you will learn

Composition: 1921 lecture
Editions / translations: Dates to be documented
Languages: French · English
Extent: 18 passages · 4,856 words

Photorealistic editorial illustration of Relativity: The Special and General Theory, English Translation in the Prokopton42.com Library

Relativity: The Special and General Theory, English TranslationAlbert Einstein

Work

Relativity: The Special and General Theory, English Translation

This English translation carries Einstein’s introduction to special and general relativity. Through measurement, reference frames, and thought experiments, it leads readers from the limits of classical mechanics toward spacetime and geometric gravitation.

What you will learn

Composition: 1916; English translation published in 1920
Editions / translations: Dates to be documented
Languages: English · French
Extent: 105 passages · 30,599 words

Photorealistic editorial illustration of Relativity: The Special and General Theory, German Edition in the Prokopton42.com Library

Relativity: The Special and General Theory, German EditionAlbert Einstein

Work

Relativity: The Special and General Theory, German Edition

In this German exposition for nonspecialists, Einstein builds relativity through trains, clocks, measuring rods, and elevators. Thought experiments replace some formalism without concealing the transformation of space, time, and gravitation.

What you will learn

Composition: 1916
Editions / translations: Dates to be documented
Languages: German · English · French
Extent: 76 passages · 21,317 words

Photorealistic editorial illustration of The Born-Einstein Letters: Einstein’s Letters in the Prokopton42.com Library

The Born-Einstein Letters: Einstein’s LettersAlbert Einstein

Fragments or testimony

The Born-Einstein Letters: Einstein’s Letters

Einstein’s letters to Max and Hedwig Born combine disputes over quantum mechanics, personal news, exile, and political concern. This selection preserves Einstein’s voice within an exchange whose replies from the Borns remain necessary context.

What you will learn

Composition: correspondence, 1916-1955
Editions / translations: Dates to be documented
Languages: English · French
Extent: 127 passages · 40,539 words

Photorealistic editorial illustration of The Meaning of Relativity in the Prokopton42.com Library

The Meaning of RelativityAlbert Einstein

Work

The Meaning of Relativity

Developed from the Princeton lectures, this book presents relativity with more mathematics than Einstein’s popular introductions. It connects affine space, tensors, gravitation, and cosmological problems in a tightly organized conceptual account.

What you will learn

Composition: 1921 lectures; later revisions
Editions / translations: Dates to be documented
Languages: English · French
Extent: 79 passages · 23,271 words

Photorealistic editorial illustration of The Principle of Relativity: Selected Papers by Einstein in the Prokopton42.com Library

The Principle of Relativity: Selected Papers by EinsteinAlbert Einstein

Work

The Principle of Relativity: Selected Papers by Einstein

This editorial selection gathers papers in which Einstein formulates decisive stages of relativity. It allows scientific arguments to be followed in published form while remaining a section of an anthology rather than a book he composed.

What you will learn

Composition: selected papers, 1905-1916
Editions / translations: Dates to be documented
Languages: English · French
Extent: 63 passages · 21,584 words

Photorealistic editorial illustration of The World As I See It in the Prokopton42.com Library

The World As I See ItAlbert Einstein

Work

The World As I See It

This compilation of essays, speeches, and letters presents Einstein on science, education, religion, pacifism, Jewish identity, and public responsibility. It reveals an intellectual orientation without forming a continuous treatise or private diary.

What you will learn

Composition: essays from the 1920s-1930s; collection published in 1934
Editions / translations: Dates to be documented
Languages: English · French
Extent: 169 passages · 53,809 words