Why does Socrates caution Hippocrates about Protagoras? How does this advice foreshadow the themes of sophistry and education developed in the latter conversations?

Why does Protagoras claim he is unique amongst sophists? How does this preface the central theme of the dialogue?

Analyze Protagoras’s creation myth, especially the involvement of Zeus in the institution of human society. Why does Protagoras tell this story? What end does it serve? Is it convincing? Why or why not?