To treat others as one would want to be treated, whether in matters of relationships, money, or other physical needs, and to seek their best interests as much as one’s own. For Jews, this applies only to other Jews; for Hasidic Gentiles, it would apply to other Hasidic Gentiles, though probably not as strictly. But it does not apply toward followers of any false religion such as Buddhism, Christianity, or Islam (see
commandment -50), except as appropriate to help turn such people to the path of repentance.