To whom does macbeth refer when he says, "what seem'd corporal melted as breath into the wind

Which statement best paraphrases these sentences from the text

"endangered dreams: the great depression in california: " which word best summarizes the author's description of the pea pickers camp?

London includes a quote about john thornton as he is observing hal attempt to motivate the exhausted dogs "it was idle, he knew, to get between a fool and his folly". if the word "idle" is defined as "of no real worth, importance, or significance", what does this statement mean with regard to hal? who is the fool? what is hal's folly? why would john thornton think it of no real worth or useless to intervene?