Streszczenie:
The author analyzes the teaching of John Paul II on the civilization of love in marital and family life as it is contained in the Letter to Families. Starting from the concept of the civilization of love contained in this letter the author pinpoints some essential conditions of such civilization. The latter is conditioned by the truth about man, marriage and family. We have to put this civilization into practice and bring up people to it in the circle of marriage and family.