Amphithéâtre Maurice Halbwachs, Site Marcelin Berthelot
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Abstract

We have seen how, in medieval history, thinking about signs did not always follow a nominalistic framework, and that many authors had already glimpsed a possible alliance between semiotics and realism. Turning to the modern period, we have begun to show how, here again, even if reflection on signs has often gone hand in hand with nominalism (Locke, Hobbes, Condillac), many approaches have tended to take a realist perspective. This was not lost on Peirce, who considered Berkeley in particular (but also, as we shall see next year, Thomas Reid) to be one of his inspirers. We have therefore presented the numerous texts in which Berkeley emphasizes the fruitfulness of an analysis of signs, which he places within a vast horizon, largely dependent on an original conception of ideas and perception [16]. The construction of the perceived object is more a matter of semiotic activity than reasoning. We need to distinguish between the geometric (mechanistic model) and the perceptual, and emphasize the heterogeneity of the sensible by developing a multifactorial visual and tactile semiotics. Semiotics, because the links between visual and tangible signs are conceived by reference to the linguistic sign and in parallel to the relationship between words and thoughts, but also because of the type of mediation between the various senses, foremost among which are touch and vision, which are ordered according to a complex symbolization relationship that is more a matter of convention than of the arbitrariness of the sign (Saussure) : because it is habit, or even experience, that enables us, once the sign has been given, to get to the thing signified.

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