In "Mending Wall", how does each neighbor respond to the wall?

1. Frost, the poet speaker, is the  observant and enlightened neighbor. Every spring he realises that both nature (the melting snow) and man (the hunters) together make gaps in the wall. A combination of logical reasoning (apple trees grow in his plot of land and pine trees in his neighbor's) and intuition ("Something there is that doesn't love a wall") convince him of the futility of this annual ritual  of trying to 'mend' this particular wall. But at the same time he is a perceptive person who knows when to build and when not to build a wall:"But here there are no cows...to give offence."

2. His neighbor, in direct contrast, is a conservative who will not listen to reason and is ofcourse completely immune to any sudden flash of intuition. All that he can do is merely repeat parrot like "Good fences make good neighbors." He is a  prisoner of dogmatic traditionalism whose thought process and actions are bound in chains by the cliched formulas of his forefathers. Consequently, Frost is unable to convince him of the futility of 'mending' the wall. Frost very aptly sums up his character by comparing him to "an old stone- savage armed/ He moves in darkness as it seems to me."  'Darkness' ofcourse refers to his ignorance, his inability to see reason or receive wisdom and enlightenment intuitively.