Hamlet is commanded by the Ghost to revenge his father's "foul and most unnatural murder" (1.5.25). Hamlet promises that when the Ghost tells the story of the murder, his revenge will follow: "Haste me to know't, that I, with wings as swift / As meditation or the thoughts of love, / May sweep to my revenge" (1.5.29-31). However, at the end of the scene he doesn't seem to be in a big hurry. He exits saying, "The time is out of joint: O cursed spite, / That ever I was born to set it right!" (1.5.189). [Scene Summary]
By the time the players come to Elsinore, it's been a while since Hamlet promised the Ghost that he would take revenge. Then the First Player weeps as he tells the story of Queen Hecuba's grief for her murdered husband. This makes Hamlet ask himself (in his second soliloquy) why he hasn't carried out his revenge. To Hamlet it seems that First Player feels more strongly about Hecuba than Hamlet does about his father. Hamlet then calls himself a coward, and tries to work himself up into the white heat of hatred. But as he is calling King Claudius a "bloody, bawdy villian," Hamlet realizes that he's still talking, rather than doing:
"Quit" means "to pay back"; in this context, it means "to take revenge." Of course, now is the time to do it, but Hamlet doesn't do it, or make any sort of plan to do it. Instead, he agrees to a recreational fencing match with Laertes. [Scene Summary]