Ferdinand de Saussure (1857–1913) was a Swiss linguist. His Course in General Linguistics (1916), reconstructed from students’ lecture notes and published posthumously, founded structural linguistics and established the tradition of semiology — the study of signs within social life.

Core ideas

  • The dyadic sign: the sign is the union of signifier (sound-image) and signified (concept). These are inseparable — two sides of the same sheet of paper.
  • Arbitrariness of the sign: the relation between signifier and signified is conventional, not natural. No inherent bond connects the sound “tree” to the concept of a tree.
  • Differential meaning: signs do not carry positive content. Each sign gets its value from what it is not relative to other signs in the system.
  • Langue and parole: langue is the abstract system of conventions shared by a speech community; parole is the individual act of speech. Linguistics, for Saussure, should study the system.
  • Synchronic and diachronic analysis: the study of a language system at a given moment (synchronic) versus the study of its historical development (diachronic). Saussure privileged the synchronic.

Notable works

  • Course in General Linguistics (1916, posthumous)
  • Mémoire sur le système primitif des voyelles dans les langues indo-européennes (1879)