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Ethica, work without obstacle, is a free internet application for internet and smartphones which proposes a digital and augmented edition of the Ethics by Spinoza (1632-1677).

Published in Latin in 1677, the Ethics intends to demonstrate "in the manner of surveyors" not only the existence of God, the nature and the origin of the human mind, but still the way which leads "as by the hand" to salvation and bliss.

Thanks to an unprecedented visualization of the text, Ethica makes visible the demonstrative network of the work. The user can see and read freely the text, explore it in a innovative and intuitive way.

Ethica is accessible to all, curious, specialists or lovers of Spinoza, philosophers, researchers, students.

The application

The database

We are developing a JSON database model adapted to Spinoza's Ethics, allowing us to dynamically load content into the interface and also to share these contents in a standardized way. This bdd model is constantly evolving in relation to the development of the project.

We also developed a routine python we allow to recover the different versions of the Ethics available in free right on internet as well as a new translation in Brazilian and to format them for our model of bdd json.


Multiple tests and versions of design and graph for the reading interface have all been done under Linux and with free software, mainly Inkscape. We will also share the sources of all these design documents.

The development of the interface

The interface is developed in pure javascript (vanilla). There is no back-office, or server-side code, which makes the application autonomous, to make it available in different contexts : website, desktop application, mobile application. We use the mithril interface framework to gain weight and speed of development. This framework is at the same time very light, flexible in these models of use, and very fast.

We have not added any additional js plugin, such as jquery for example, in order to gain execution velocity and because current javascript environments are powerful enough and standardized enough to be used as is. webpack serves as a development environment, which allows to design the source application of different modules arranged between them. This has the effect of better organizing the code and allow a more fluid collaborative work.


All sources of design and codes of the application will be shared under free license Gnu GPLv2 via this deposit. If you are interested to use parts of this work please make your request to