"There is but one good way to take vengeance upon your ememy, it is to acquire good virtues and walk in the path of the righteous, and you will indirectly take vengeance upon your enemies, for they will be grieved because of your excellent qualities and good reputation." (Code of Jewish Law)
"If any man was wronged by another and he neither rebukes, nor hates, nor bears a grudge against him, but forgives him with his whole heart, this is a saintly virtue..." (Code of Jewish Law)
"It is forbidden to insult anyone either by word or by deed, espcially in public." (Code of Jewish Law)
"Joshua b. Perahiah says...And give everybody the benefit of the doubt." (Mishnah, Pirkei Avot 1:6)
"Do not judge your fellow until you have rested in his place" (Hillel in Mishnah, Pirkei Avot 2:5)