Christlike staying power in romance and marriage requires more than any of us really have. It requires something more, an endowment from heaven.
This is the complete quote from the author Elder Jeffrey R. Holland, american, religious educator in which he pretends to make the reader conscious of the implications of being a Christian and what it is needed. By saying "it requires something more" he is referring that it it not as easy as wanting and trying. Because it is bigger than us, humans.
