"Spouses are therefore the permanent reminder to the Church of what happened on the Cross; they are for one another and for the children witnesses to the salvation in which the sacrament makes them sharers." Familiaris Consortio, Section 13
“Christian marriage, like the other sacraments, “whose purpose is to sanctify people, to build up the body of Christ, and finally, to give worship to God,” is in itself a liturgical action glorifying God in Jesus Christ and in the Church” Familiaris Consortio, Section 56
"The family, which is founded and given life by love, in a community of persons: of husband and wife, of parents and children, of relatives…with love the family is not a community of persons and, in the same way, without love the family cannot love, grow and perfect itself as a community of persons." Familiaris Consortio, Section 18
"A person’s rightful due is to be treated as an object of love, not as an object for use." Love and Responsibility
"To maintain a joyful family requires much from both the parents and the children. Each member of the family has to become, in a special way, the servant of the others." Homily from Mass at the Capital Mall, Washington, DC, October 7, 1979
"Marriage is an act of will that signifies and involves a mutual gift, which unites the spouses and binds them to their eventual souls, with whom they make up a sole family - a domestic church." Love and Responsibility
"What really matters in life is that we are loved by Christ and that we love Him in return. In comparison to the love of Jesus, everything else is secondary. And, without the love of Jesus, everything is useless." Address during visit to the tomb of St. John Neumann, October 4, 1979 
"As the family goes, so goes the nation and so goes the whole world in which we live." Homily in Perth, Australia, November 30, 1986
"Love between man and woman cannot be built without sacrifices and self-denial." Love and Responsibility
"Life is entrusted to man as a treasure which must not be squandered, as a talent which must be used well." Evangelium Vitae, section 52
"The great danger for family life, in the midst of any society whose idols are pleasure, comfort and independence, lies in the fact that people close their hearts and become selfish." Homily from Mass at the Capital Mall, Washington, DC, October 7, 1979
“Genuine love … is demanding. But its beauty lies precisely in the demands it makes. Only those able to make demands on themselves in the name of love can then demand love from others." Message to the young people of Cuba, January 12, 1998