I believe that the best answer for this question is an allusion. An allusion is a literary device where a writer refers to some other work of literature in their own work of literature in order to make some point or add emphasis. Here, T.S. Eliot is referring to Hamlet by Shakespeare. The speaker is asserting that he is not indecisive, as Hamlet is. Rather, he is like Polonius, a servant of the king in Hamlet. Polonius is a very cautious character but is overall fairly useless. I hope this helps. Don't forget to make me brainiest.
Retort is the words usually spoken
The witches are the ones who give Macbeth the prophecy that he will one day become king, that Banquo with father kings, and that Macbeth can not be killed by anyone born of woman. These set off Macbeth's entire journey in the play and motivate him to kill the king, kill Banquo, and ultimately lead to his downfall.
Selena often works late into the night, and Bernardino also often works late.