"All abstract sciences are nothing but the study of relations between signs"
About this Quote
A tidy Enlightenment provocation: take the supposedly pure realm of abstract science and demote it to semiotics. Diderot isn’t dismissing mathematics or logic as fake; he’s puncturing their mystique. “Nothing but” is the scalpel. He’s reminding the reader that abstraction doesn’t float above human making. It runs on marks, symbols, conventions - and the agreements that let those marks stand in for quantities, operations, and rules.
The intent is editorial in the deepest sense. Diderot helped build the Encyclopedie, a machine for reorganizing knowledge and stripping it of priestly aura. In that project, the fight wasn’t only against censorship; it was against the idea that certain domains are sacred, self-justifying, and accessible only to initiates. If abstract sciences are relations between signs, then their authority is procedural rather than metaphysical: you can inspect the system, learn the code, test the coherence. The gate becomes a grammar.
The subtext also carries a warning. Signs are powerful because they can be manipulated. Once a discipline becomes fluent in its own symbolic shorthand, it can confuse elegance with truth, internal consistency with relevance. Diderot anticipates a modern anxiety: expertise that hides behind notation, where the public is asked to trust the symbols instead of understanding the stakes.
Contextually, he’s writing in a century obsessed with classification, measurement, and “reason” as a civic instrument. His line is a vote for demystification: abstraction as a tool we forged, not an oracle we must obey.
The intent is editorial in the deepest sense. Diderot helped build the Encyclopedie, a machine for reorganizing knowledge and stripping it of priestly aura. In that project, the fight wasn’t only against censorship; it was against the idea that certain domains are sacred, self-justifying, and accessible only to initiates. If abstract sciences are relations between signs, then their authority is procedural rather than metaphysical: you can inspect the system, learn the code, test the coherence. The gate becomes a grammar.
The subtext also carries a warning. Signs are powerful because they can be manipulated. Once a discipline becomes fluent in its own symbolic shorthand, it can confuse elegance with truth, internal consistency with relevance. Diderot anticipates a modern anxiety: expertise that hides behind notation, where the public is asked to trust the symbols instead of understanding the stakes.
Contextually, he’s writing in a century obsessed with classification, measurement, and “reason” as a civic instrument. His line is a vote for demystification: abstraction as a tool we forged, not an oracle we must obey.
Quote Details
| Topic | Reason & Logic |
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