Answer:
He is stubborn.
Step-by-step explanation:
Robert Frost, the poet, thinks there is no need to have a wall between the two neighbours. Yet, his neighbour will keep it . He thinks a wall is a way , at least, to keep some distance from his neighbour. The wall is made of stones which sometimes fall or are missing and there he is mending it any time a stone is missing. Besides, he follows to the letter what his father used to say about walls and neighbours:"Good fences make good neighbours."