Destructive acts of rage are like Idolatry, and lead to it: Shabbat 105b
Anger is common: Ketuvot 61b
The worthlessness of anger: Kiddushin 40b-41a
Angry people will never have a full life: Pesachim 113b
Don't try to appease a friend in his moment of rage: Berachot 7a, 7b
When one is enraged, even Hashem's Presence becomes irrelevant to him: Nedarim 22b
Rage causes one to be afflicted by "types of Hell": Nedarim 22a
Rage causes bowel problems, which leads to vision problems and to anguish: Nedarim 22a
Rage causes one to forget his learning, and to increase in stupidity: Nedarim 22b
Rage is an element of the punishment of Exile: Nedarim 22a-b
If someone gets angry, it is a sign that he has more transgressions than merits: Nedarim 22b
You can gauge a person's true nature by the way he spends money, the way he handles anger, the way he acts when drunk, and some add by what makes him laugh: Eruvin 65b
A wife's rage is to a household like a worm is to a sesame seed: Sotah 3b