In urging both engagement and Christian hope, Archbishop Chaput did not sugarcoat American culture. He described it bleakly as one where one third of men and 40 percent of women will someday experience an anxiety disorder, where nearly half of men have contracted a sexually transmitted disease, and where "the birth control pill and the separation of sex from procreation have altered the fundamental meaning of sex."

In the conflict between religious liberty defined by natural law and erotic liberty espoused by gay activists and many others, those who believe in biblical values of family and marriage are labeled bigots, he noted.

The rapid advances of technology are too much for most people to absorb and the practical American talent for getting things to work is carried to extremes, he said. "Technological man sees the world not as a gift of God -- with its own purpose and meaning, to be treasured and stewarded -- but as a collection of dead material to be organized and used.

"And that 'utility attitude' eventually spreads to the way we treat the environment, other living creatures, other people, and our own bodies and selves," he added.

As an antidote to pessimism, he urged his audience to read Pope Francis' "great text," the apostolic exhortation "Evangelii Gaudium" ("The Joy of the Gospel").

The pope "reminds us how vital it is to believe in Christ's victory and to lift up our hearts. We need to see the world and its problems as they really are. Otherwise we can accomplish nothing. But we can't let the weight of the world crush the joy that's our birthright by ourrebirth in Jesus Christ through baptism. If we cling to that joy, if we cling to God, then all things are possible," Archbishop Chaput said.

"It's part of our American DNA to want a well-crafted strategic plan to get the church back in the 'influence game,'" Archbishop Chaput said. "There's no quick fix for problems we behaved ourselves into, and the culture we have is a culture we helped make with our appetites, distractions and compromises."

Archbishop Chaput said he advises young Catholics that the most important thing they can do is very basic.

"I tell them to love each other, get married, stay faithful to one another, have lots of children, and raise those children to be men and women of Christian character," the Philadelphia archbishop said. "The future belongs to people with children, not with things. Things rust and break. But every child is a universe of possibility that reaches into eternity, connecting our memories and our hopes in a sign of God's love across the generations. That's what matters. The soul of a child is forever."

And, Archbishop Chaput said, the "first task of modern life is to unplug. To make room for the conversation that the church has traditionally called prayer."

"We do not see the full effects of what we do in this life," Archbishop Chaput said, but one day we will.

"Have faith. Trust in the Lord. Love with all your hearts and believe in his love for you," he said.

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Schmalz is assistant editor of Catholic San Francisco, newspaper of the Archdiocese of San Francisco.