WILL GIVE BRAINLIEST AND 10 POINTS, NEED ASAP What is a central idea of "Mending Wall"? The speaker argues with his neighbor because he believes that walls are necessary, and his neighbor does not. The speaker persuades his neighbor to accept his view that building a wall will improve their relationship. Two neighbors agree that they should work together to rebuild a wall each spring. Two neighbors have different ideas about the role that borders serve in maintaining relationships between people.