The Shakespearean tragedy Macbeth is a play about the lengths one will go to satisfy his or her ambition and the consequences of one's desire (etext found here).
speak about unimportant matters rapidly and incessantly
Thou sure and firm-set earth,
Hear not my steps, which way they walk, for fear
Thy very stones prate of my whereabout,
And take the present horror from the time,
Which now suits with it.
Faith, here's an equivocator, that could swear in both the scales against either scale; who committed treason enough for God's sake, yet could not equivocate to heaven: O, come in, equivocator.