...be ill; cannot be good. If ill, Why hath it given me earnest of success, Commencing in a truth? I'm Thane of Cawdor. If good, why do I yield to that suggestion...Shakes so my single state of man that function Is smother'd in surmise; and nothing is But what is not. (1.3.128-42) Also in the mind of Lady Macbeth...