1 An unfriendly person pursues selfish ends
and against all sound judgment starts quarrels.
2 Fools find no pleasure in understanding
but delight in airing their own opinions.
Through sound judgment a person realizes he has something to give to others, and he also has something to receive from them. He need not take care of all of his own needs, because he allows others to help him. He is happy to return the favor, blessing others with his skills while they bless him with theirs.
The unfriendly person sees relationships as burdens, so he misses the blessings. He rejects the idea of depending on anybody, seeing this as weakness. He doesn’t realize that pride is weakness and humility is strength. He has no time for others, because he spends all of it looking after himself. His strength is proven to be weakness when the storms of life come, because he has nobody to help him through them.
“Fools find no pleasure in understanding but delight in airing their own opinions.” If the fool doesn’t isolate himself, he is adept at isolating his mind. In his pride, he is convinced he knows everything he needs to know. He is happy to share his ignorance with whomever will listen, but he is insulted by their advice. He hates to learn things the hard way, but all other lessons are wasted on him.