Introduction
In 1738, in his *Elements of Newton’s Philosophy Made Accessible to Everyone* , Voltaire justified his undertaking as follows: ‘The science of nature is a good that belongs to all mankind’. This does not mean that everyone can contribute to it equally, but that everyone has the right to know its findings. The universality of science does not lie solely in its ability to establish laws that are valid everywhere and at all times; it implies that the knowledge produced is universally shared, that it becomes a common good. The Newtonian, then Lavoisierian and Linnaean paradigms, which have so often served as models for the definition of modern ‘science’, have long been associated with the requirement for the public dissemination of scientific knowledge: this knowledge must be made available, both materially and intellectually, through intermediaries such as Voltaire, so as to enable everyone – and in particular those who have neither the means nor the time to delve into the details of the calculations – to have ‘knowledge of their common good’.
This Enlightenment ideal of openness and public access clashed with the supposed closed nature and culture of secrecy surrounding craft-based knowledge, as well as with the hierarchy and selectivity of scholarly institutions. Yet these divisions have been the subject of in-depth debate. Whilst the public accessibility of science lies at the heart of the Enlightenment project, from the 18th century onwards it posed as many problems as it solved. Who sets out the findings? Who will be responsible for publishing scientific results? Can the public settle disputes between scholars? The public’s entry onto the scholarly stage transforms the social boundaries of its analysis: what role do women, amateurs and craftspeople play in this scholarly world, which is both becoming increasingly specialised and open to the public? What is the place of lay knowledge in the scholarly world of the Enlightenment? Can the dissemination of science avoid being turned into a spectacle, oversimplified, or exploited by pseudo-scholars and charlatans? This social openness, driven by the new approaches of the Enlightenment, thus leads us to question the very category of science itself. Today’s issues are no longer those of the cultural turning point of the 1990s, and this conference will provide an opportunity to discuss the perspectives opened up, for example, by reflections on scientific commons, the funding of science, the utility of science and intellectual property.