"The fourth Commandment asks children – and we are all children! – to honor their father and their mother (Cf. Exodus 20:12). This Commandment comes immediately after those that concern God Himself. In fact, it contains something sacred, something that is at the root of all other kinds of respect between men. And, added in the biblical formulation of the fourth Commandment is: “that your days may be long in the land which the Lord your God gives you.” The virtuous connection between the generations is guarantee of the future, and it is the guarantee of a truly human history. A society of children who do not honor their parents is a society without honor; when parents are not honoured, one loves their own honor! It is a society destined to fill itself with arid and avid young people. However, a society that is greedy with its generation, which does not like to surround itself with children, that considers them above all a worry, a weight, a risk, is a depressed society, because they do not want children, they don't have children, the birthrate never reaches one percent. Why? Each one of us must think and respond. If a family that is full of children is regarded as if it were a weight, there is something that’s not right! The generation of children must be responsible, as the Encyclical Humanae vitae of Blessed Pope Paul VIalso teaches, but to have more children cannot become automatically an irresponsible choice. To not have children is a selfish choice. Life rejuvenates and acquires energies by multiplying itself: it is enriched, not impoverished! The children learn to take charge of their family, they mature in the sharing of their sacrifices, they grow in the appreciation of their gifts. The happy experience of fraternity animates the respect and the care of parents, to whom we owe our gratitude."
--Pope Francis, On the Gift of Children