What's more romantic than getting together with ... the pope. In the spirit of Valentine's Day, Pope Francis addressed a crowd of engaged couples in St. Peter's Square and gave advice on how to have a happy marriage—though, of course, he's celibate. "It's important to ask whether it's possible to love one another forever," he said to the thousands gathered, per NBC News. "Today, everything is changing rapidly and nothing lasts for long. This sort of mentality leads so many who are getting ready for marriage to say they will be together for as long as love lasts," which can lead to divorce. But marriage, he said, should not be built on sand, but "on the rock of real love."
"Living together is an art," he continued, but it's not easy. You need mutual courtesy and politeness, but "we all know there isn't a perfect family, neither a perfect husband nor a perfect wife." He even joked, "Let's not even talk about perfect mothers-in-law." As for his secret to long-lasting love? "Never end a single day without being at peace with each other. This is the secret in order to preserve love." And if you're celebrating love on a day like today, flowers and food aren't important. You must be in a true spirit of love, and feel Jesus' presence, he added, per CNN. Both sources call today's address "unprecedented." (Read more Pope Francis stories.)