In addition to Memoire on the Original System of Vowels in Indo-European Languages, in this most famous work, he drew a distinction between systemic and diachronic linguistics and hypothesized that languages was merely a system of signs.
One of this scholar's early works advocated that there were hidden proper nouns in certain Latin texts, a theory he abandoned after a poet refused to respond to his letters. In a work most famous in his own lifetime, this man advocated the idea that some forms had disappeared from certain languages, a theory born out in his study of Hittite. In addition to Memoire on the Original System of Vowels in Indo-European Languages, in this most famous work, he drew a distinction between systemic and diachronic linguistics and hypothesized that languages was merely a system of signs. For ten points, identify this linguist, whose ideas were collected from his lecture notes in Course on General Linguistics.
One of this scholar's early works advocated that there were hidden proper nouns in certain Latin texts, a theory he abandoned after a poet refused to respond to his letters.
Ferdinand de {Saussure}