Musar do Przysłów 6:12

And this is the thing about the group of liars - the content of this group is divided into nine sections:
The first section: The lying man that left the Torah and does evil and destroys with the response of his mouth - like one who contradicts his countryman about a deposit or a transfer or the wage of a wage-worker, as it is stated (Leviticus 19:11), “you shall not deal deceitfully or falsely, a man towards his countryman.” And likewise, one who bears false witness against his neighbor; and it is said (Exodus 20:13), “you shall not bear false witness against your neighbor.” And included in this section is deception and fraud in commerce and in partnerships; and it is stated (Leviticus 25:14), “you shall not cheat, one man, his brother.” And it is [also] stated (Psalms 55:12), “fraud and deceit never leave its square.” And he is called a man of iniquity and a ruffian; and he is the heaviest with iniquity from the groups of the evildoers, as we have discussed in the Gates of Fear of Sin (no longer extant). And the characteristics of this man of iniquity are that he winks his eyes and rolls his fingers, as it is written (Proverbs 6:12-13), “A ruffian individual, a man of iniquity, etc. Winking his eyes, etc.”

Pele Yoetz – on Sinah - Hatred - Hatred [of others] is hated [by Hash-m] for upon it the Tanna said Rabbi Yehoshua says a bad eye & the evil inclination & hatred of the creatures [of Hash-m], expel a person from the world. (Pirkei Avot 2:11 on Self-Destruction And it causes many sins for hatred awakens quarrels & one falls into the grips of controversy & evil speech & causes one to become happy for the misfortune [of others] & to damage & cause pain & to take vengeance & to spite like a snake [against the other] & many similar evils. And it is written in the holy books – that there is no sin of all the sins like hatred – because every moment one transgresses upon that that is written in the Torah “Do not hate your brother in your heart.” and that that is written “You shall love your fellow as yourself.” & this is the reason why gratuitous hatred destroyed the Holy Temple. And any kind of of hatred is considered 'gratuitous hatred', for any kind of claims that he has [against the other party] to express, are vanity, acts of delusion, like we explained above in the section of 'love of [our] fellows' - see there.