How does the speaker's repetition of the neighbor's cherished belief about the importance of walls (lines 27 and 45) convey the poem's criticism of an undesirable social pattern?

The movement known as stressed the power of imagination and dreams over conscious control.

Give an example of a situation in which an individual's pursuit of economic self-interest may not benefit but instead harm the rest of society

Hurry: the angle measures associated with which set of ordered pairs share the same reference angle? (-square-root 3/2, 1/2) , (-1/2, -square-root 3/2) (1/2, -square-root 3/2) , (-square-root 3/2, 1/2) (-1/2, -square-root 3/2), (1/2, square-root 3/2) (square-root 3/2, 1/2) , (1/2, square-root 3/2)