411. It is written,
Thou shalt love the Lord thy God above all things, and thy neighbor as thyself (Luke 10:27).
To love the neighbor as oneself is, not to hold him in light esteem in comparison with oneself, to deal justly with him, and not to pass evil judgments upon him. The law of charity set forth and given by the Lord is this:
All things whatsoever ye would that men should do unto you, do ye even so unto them; for this is the law and the prophets (Matt. 7:12; Luke 6:31, 32).
So do they love the neighbor who are in the love of heaven; while those who are in the love of the world love the neighbor from the world and for the sake of the world; and those who are in the love of self love the neighbor from self and for the sake of self.
