"These are not the words of someone who wanted to patiently wait until Duncan's death" - This is immediately after he has been named the Thane of Cawdor without taking any action such as killing the previous holder of that title. Wouldn't a more natural interpretation of those lines be that since he was granted the Cawdor title "without my stir", the title of king may fall into his posession in the same way? I don't see how those lines
don't mean "I may become king the same way I became the thane of Cawdor - without doing anything". —
Mithical ♦ 8 hours ago