Of all the animals, man is the only one that is cruel. He is the only one that inflicts pain for the pleasure of doing it.

"People speak sometimes about the "bestial" cruelty of man, but that is terribly unjust and offensive to beasts, no animal could ever be so cruel as a man, so artfully, so artistically cruel."

Man can be the most affectionate and altruistic of creatures, yet he's potentially more vicious than any other. He is the only one who can be persuaded to hate millions of his own kind whom he has never seen and to kill as many as he can lay his hands on in the name of his tribe or his God.

If there's one thing you can say about mankind, there's nothing kind about man.

Men are cruel, but Man is kind.

There's nothing more egocentric than a cat.

Perhaps there really was a God, and He was just as cruel as the humans He made in His form.

nothing cruel is in fact beneficial; for cruelty is extremely hostile to the nature of man, which we ought to follow.

I do not see why man should not be as cruel as nature.

The cruel man is of misanthropic temperament, and is a man of moods, oscillating from quiet brooding to sudden explosions. If a man like this does not fight this unhappy provision of his soul during his youth, under no circumstances could he avoid becoming furious - and foolish. There are those who would leave it up to God, but to ensure justice on the earth, and not fob it off to the Divinity, it is mandatory that people know both virtue and its benefits, since the virtues lead to unity among them, not the war of all against all. Therefore, it is absolutely necessary to conserve them, and show that crime can only return misfortunes and destruction, including of the criminal himself. Who is the last victim of his crimes.

He said that man’s heart was the only bad heart in the animal kingdom; that man was the only animal capable of feeling malice, envy, vindictiveness, revengefulness, hatred, selfishness, the only animal that loves drunkenness, almost the only animal that could endure personal uncleanliness and a filthy habitation, the sole animal in whom was fully developed the base instinct called patriotism, the sole animal that robs, persecutes, oppresses and kills members of his own tribe, the sole animal that steals and enslaves the members of any tribe.

He was a ferocious man. He had been ill-made in the making. He had not been born right, and he had not been helped any by the molding he had received at the hands of society. The hands of society are harsh, and this man was a striking sample of its handiwork. He was a beast - a human beast, it is true, but nevertheless so terrible a beast that he can best be characterized as carnivorous.

though he may be cruel, never can be brave. But,

People talk sometimes of bestial cruelty, but that's a great injustice and insult to the beasts; a beast can never be so cruel as a man, so artistically cruel.