This is quite a broad question, and certainly answers to it can only be general in nature.
Many sources within Judaism teach that although “Love Thy Fellow as Thyself” is an overarching principle of the entire Torah,(as famously taught by Hillel and Rabbi Akiva), charity begins at home. A person is required to see themselves as living for something much grander and more important than one’s own egotistical and parochial needs; to know that they were put in the world to serve, to do for God and for others, and to make the world a better place for all. However, in order to do that, one must be healthy in mind and spirit and body, and have a positive self-image as a person of self worth and great potential who can then perform all of the great tasks that they were put in the world to accomplish. One thus needs to tread the middle path between, on the one hand being giving and altruistic, and on the other hand, not being a “schmatte” (doormat) that allows people to use and abuse them. And so on and so forth in all areas.
Rabbi Samson Raphael Hirsch has an important lesson to impart on this topic. If you think about it, the verse “Love Thy Fellow as Thyself” seems to set up an impossible ideal. We all know that virtually no one loves ANYONE as much as they love themselves, even their closest friends and family. How then, does the Torah demand of us to love ALL others as much as myself? Impossible!!!
Rav Hirsch says brilliantly that if we think that this is what the Torah demands we have not read the verse properly. The verse does not read ואהבת את רעיך כמוך (Love thy fellow as thyself), but rather ואהבת לרעיך כמוך (Love to thy fellow as thyself).
There is a huge difference here.
As stated above, we cannot possibly love all others as much as ourselves. But that is not what is asked of us. It is the interface between people that is the subject of this mitzvah. The way that we wish to be treated, that which is “to thy fellow”; it is with that same degree of love that we are to treat others. We may not love the other person – we may downright dislike them (although we really need to try not to). But we are to TREAT them with love. Or as Hillel put it, “That which is hateful to you, do not do to others”.
Included in this teaching, I believe, is the requirement that just as we would not want to have someone else’s needs have priority over my own in a way that would be injurious to me, so too should I treat others, and not have them expect that their needs
should have priority over mine when they are hurtful to me.
Bottom line – Of course we are to love, respect, and serve others – that is at the core of who we are. But if the demands of others are injurious to ourselves, we need to look at how we wish to be treated, and treat others with same degree of love that we would accord to ourselves.
Answered by: Rabbi Yehuda Leonard Oppenheimer