Quotation su Salmi 50:20

And this is the thing about the group of scoffers - scoffing is divided into four sections:
And the first section is the man of the tongue that spreads the infamy of people, like the matter that is stated (Psalms 50:20), “You are busy maligning your brother, defaming the son of your mother.” And he is called a scoffer, as it is stated (Proverbs 21:24), “The proud, insolent man, scoffer is his name, acts in a frenzy of insolence.” Its explanation is that] two bad traits - which are insolence and pride - gathered and joined in the scoffing man. For without having a benefit from the thing, he causes great damage to his fellows, whose reputations he sullies in the eyes of people. And this is the goal of the scoffer, more than the thief or the extortionist - who does [it] to increase his money. And he is also arrogant - for when one who is lowly and submissive recognizes his own deficiencies and blemishes, he will not scoff at people. And our Rabbis, may their memory be blessed, said (Taanit 8a), “In the future, all the animals will gather together by the snake and say to him, ‘A lion mauls [its prey] and eats; a wolf tears [it] and eats; [but] you, what pleasure do you have [when you bite a person]?’ He will say to them, ‘If the snake bites because no spell was uttered, no advantage is gained by the master of the tongue!’ (Ecclesiastes 10:11).” And this section is also from the sections of the group of the slanderers.