Genuine love, to which the apostle Paul devoted a hymn in his First Letter to the Corinthians, 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. Young people of today need to discover this love, because it is the true and solid foundation of the family. Forcefully reject any of its false substitutes, such as “free love.” How many families have been destroyed because of this! Never forget that blindly following the impulse of our emotions often means becoming a slave to our passions.
– St. John Paul II