Synthesized answer
The provided passages do not explicitly list unanswered questions from the "Treatise on the Origin of Language (1772)" [1]. However, the first part of the treatise poses a question that implies further inquiry: "Were human beings, left to their natural abilities, able to invent language for themselves?" [1]. This question suggests that the answer to it might lead to subsequent, as yet unaddressed, questions within the work.
Synthesized from the book passages below. Chat with the book on Feynman for follow-up.
From the book
Title: Herder: Philosophical Writings by Johann Gottfried Herder Description: Publisher Description Categories: Philosophy Pages: 488 Snippet: Johann <b>Gottfried Herder</b> Michael N. Forster. <b>Treatise on the Origin of Language</b> ( <b>1772</b> ) Vocabula sunt notae rerum.1 Cicero First part : Were human beings , left to their natural abilities , able to invent language for themselves ? 2 ...