He acts without thinking and with bad judgment.

Jeez, for a superior intelligence, you must be just plain dumb,' he said.

Colmes: — that's a very insulting comment —

The insult was thrown out with a peculiarly reckless air; it astounded the hearer, who sat for an instant with staring eyes and lips apart; then the blood rushed to his cheeks.

You cannot insult a man more atrociously than by refusing to believe he is suffering.

"Blast your soul, you hussy!" he exclaimed in exasperation.

He who is affected by an insult is infected by it.

To insult someone we call him 'bestial'. For deliberate cruelty and nature, 'human' might be the greater insult.

"There was a man who said, "Such and such a person has a violent disposition, but this is what I said right to his face… This was an unbecoming thing to say, and it was said simply because he wanted to be known as a rough fellow. It was rather low, and it can be seen that he was still rather immature. It is because a samurai has correct manners that he is admired. Speaking of other people in this way is no different from an exchange between low class spearmen. It is vulgar.

The way to procure insults is to submit to them. A man meets with no more respect than he exacts.

The worst of Warburton is, that he has a rage for saying something, when there's nothing to be said.

He hated the way they thought. He hated the way they didn't think. It was hard to imagine which of them he hated more.

You're a jerk,' repeated the alien, 'a complete asshole.

“By God, you are a hateful man!”
“Anyone who tells you anything you don’t want to hear is a hateful man,” Hamnet answered.