“Can't repeat the past? ... Why of course you can!”
Context: Gatsby reacts in disbelief when Nick warns him that he cannot recreate his romance with Daisy as it once was.
Analysis
The rhetorical question and the exclamatory "Why of course you can!" expose Gatsby's delusional faith that time can be reversed. The ellipsis enacts his incredulity that anyone could doubt it. Fitzgerald uses this line to crystallise the novel's central tragedy: Gatsby's dream is fixed on an irretrievable past.
Language Techniques:
Exam Tip
The single most important Gatsby quote for the theme of the past. Connect to the green light and the closing line about being "borne back ceaselessly into the past".