فردينان دو سو سير : المعلوم الذي لا يعلم عنه

الملخص EN

The studies that dealt with Su Sir’s thought and its truth were equal to the studies that dealt with his theory of language, in their abundance.

Indeed, many of them were found to deal with Su Sir’s thought and theory under one research, and yet this linguist is still a subject of curiosity and suspicion by scholars; because he did not publish what he wrote, nor did he write what was published about him.

therefore, this research deems that Su Sir did not intend to put the concepts of the language that he studied in contrasting binaries, and perhaps this research is not the first to say that, but he intended to clarify how this happened, by tracking Su Sir's research and his thinking in his lectures that he published his students, Bali and Sishai in linguistics, and it is known that many researchers made their witness, and what supports their opinion-that Su Sir adopted dualities as a method in his study is the discovery a century after his death of manuscripts he wrote with his own hand, entitled (on the dual essence of language).

as for this research, it cites this discoverer as well.

to prove the opposite, that is, Su Sir did not intend the dualities intentionally, and did not make them a method for his study, and the research according to this vision raises a question that no research before him had dared to raise for discussion, namely : What if (in the dual essence of the language) were written manuscripts, and not an intellectual product Inherited from Su Sir.