Explain the meaning of the line,”fair is foul, and foul is fair.”

"Fair is foul, and foul is fair" is a quote extracted from William Shakespeare´s Macbeth and makes allusion to the constant fight between evil and good in each character, also allows us to understand that in several stages of the life will always be a fight between forces: cowardice and bravery, faith and disappointment, strength and weakness.

It means that not everything is as it seems, since people generally let themselves be guided by appearances and can do good or fair things, which are really bad, just as, exactly the opposite, they can do bad things, which in reality are not. . This phrase is a clear reflection and invitation to analyze people or things thoroughly, not to fall into this deception, as in Macbeth, where the king is betrayed by him, all for the greed to own his kingdom.

d) the narrator even suggested that the white whale, moby d, was ubiquitous and present in every ocean at every moment.