“There are four types of character in human beings: One that says: “mine is mine, and yours is yours”: this is a commonplace type; and some say this is a sodom-type of character. [One that says:] “mine is yours and yours is mine”: is an unlearned person (am haaretz); [One that says:] “mine is yours and yours is yours” is a pious person. [One that says:] “mine is mine, and yours is mine” is a wicked person.” - Mishnah, Pirkei Avot 5:11