Let's break it down:
* Rhetorical questions: The first two lines are rhetorical questions. They are not meant to be answered, but rather to emphasize a point. The speaker is questioning why the "verities" that have been proven true for someone else shouldn't apply to them as well.
* Apostrophe: The line "And set me up hope" is an example of apostrophe. Apostrophe is a literary device where a speaker directly addresses someone or something that is not present or cannot respond. Here, the speaker is addressing hope, personifying it and asking it to be their guide.
The last line, "But hush no more," serves as a transition, moving the speaker away from hope and toward another topic.