"Love your neighbor as yourself."

Pay to all what is due them--taxes to whom taxes are due, revenue to whom revenue is due, respect to whom respect is due, honor to whom honor is due. Owe no one anything, except to love one another; for the one who loves another has fulfilled the law. The commandments, "You shall not commit adultery; You shall not murder; You shall not steal; You shall not covet"; and any other commandment, are summed up in this word, "Love your neighbor as yourself." Love does no wrong to a neighbor; therefore, love is the fulfilling of the law.
-Romans 13:7-10 (NRSV)