And at length i found myself, as the shades of the evening drew on, within view of the melancholy house of usher. i know not how it was—but, with the first glimpse of the building, a sense of insufferable gloom pervaded my spirit. —poe, "the fall of the house of usher". what is the benefit of using "i know not…" instead of "i don't know" or another more concise syntax?

It establishes an earlier time period.

Explanation:

This is one of the reasons why it is convenient to use this phrase ("I know not...") as opposed to a different one. As a modern reader, we are usually more acquainted with phrases such as "I don't know." Therefore, we might find it strange to see other type of syntax being used. However, the advantage of this is the fact that such a phrase allows us to establish the time period of the story. From this, we can imply that the syntax belongs to an earlier time period.

1. read the following excerpt from franklin d. roosevelt's "fireside chat 19":

on the other side of the picture, we must learn also to know that guerilla warfare against the germans in, let us say serbia or norway, us; that a successful russian offensive against the germans us; and that british successes on land or sea in any part of the world strengthen our hands.

remember always that germany and italy, regardless of any formal declaration of war, consider themselves at war with the united states at this moment just as much as they consider themselves at war with britain or russia. and germany puts all the other republics of the americas into the same category of enemies. the people of our sister republics of this hemisphere can be honored by that fact.  

the true goal we seek is far above and beyond the ugly field of battle. when we resort to force, as now we must, we are determined that this force shall be directed toward ultimate good as well as against immediate evil. we americans are not destroyers — we are builders.

analyze the effectiveness of this excerpt. how does it function within the speech as a whole? how does the structure of the excerpt to convey the speech's purpose and key points? support your argument with evidence from the speech. (10 points)

what passage are you referring to