...Everyone must consider his every neighbor without exception as another self, taking into account first of all His life and the means necessary to living it with dignity, so as not to imitate the rich man who had no concern for the poor man Lazarus.
In our times a special obligation binds us to make ourselves the neighbor of every person without exception. and of actively helping him when he comes across our path, whether he be an old person abandoned by all, a foreign laborer unjustly looked down upon, a refugee, a child born of an unlawful union and wrongly suffering for a sin he did not commit, or a hungry person who disturbs our conscience by recalling the voice of the Lord, "As long as you did it for one of these the least of my brethren, you did it for me" (Matt. 25:40).
Furthermore, whatever is opposed to life itself, such as any type of murder, genocide, abortion, euthanasia or willful self-destruction, whatever violates the integrity of the human person, such as mutilation, torments inflicted on body or mind, attempts to coerce the will itself; whatever insults human dignity, such as subhuman living conditions, arbitrary imprisonment, deportation, slavery, prostitution, the selling of women and children; as well as disgraceful working conditions, where men are treated as mere tools for profit, rather than as free and responsible persons; all these things and others of their like are infamies indeed. They poison human society, but they do more harm to those who practice them than those who suffer from the injury. Moreover, they are supreme dishonor to the Creator.
Respect and love ought to be extended also to those who think or act differently than we do in social, political and even religious matters. In fact, the more deeply we come to understand their ways of thinking through such courtesy and love, the more easily will we be able to enter into dialogue with them.
This love and good will, to be sure, must in no way render us indifferent to truth and goodness. Indeed love itself impels the disciples of Christ to speak the saving truth to all men. But it is necessary to distinguish between error, which always merits repudiation, and the person in error, who never loses the dignity of being a person even when he is flawed by false or inadequate religious notions. God alone is the judge and searcher of hearts, for that reason He forbids us to make judgments about the internal guilt of anyone.
The teaching of Christ even requires that we forgive injuries, and extends the law of love to include every enemy, according to the command of the New Law: "You have heard that it was said: Thou shalt love thy neighbor and hate thy enemy. But I say to you: love your enemies, do good to those who hate you, and pray for those who persecute and calumniate you" (Matt. S:43-44).