"A Good Samaritan is one who brings help in suffering, whatever its nature may be...He puts his whole heart into it, nor does he spare material means.  We can say that he gives himself, his very "I," opening this "I" to the other person.  Here we touch upon one of the key points of all Christian anthropology.  Man cannot "fully find himself except through a sincere gift of himself".  A Good Samaritan is the person capable of exactly such a gift of self."

-St. John Paul II