In the time we are given

Tolkien delivered "Beowulf: The Monsters and the Critics" in 1936, before he began writing the Middle-earth books. This is from "Monsters and the Long Defeat" about that lecture:

.... The need to defend “man’s precarious fortress” would never cease; crisis would emerge yet again, and then again, exhaustingly, until the end of the age. Tolkien had no patience for defeatism, but he knew at the same time that the dragon-fight to which any of us, the descendants of Adam, are summoned, will not be the last. And if it is branded the “dragon-fight to end dragons,” the vendors of that narrative will consign many hopeful young persons to the bleak fate of having failed. We cannot hope to root out Evil from the soil of the cosmos entirely. All we can do is confront its promulgation so far as we are able to in our weakness. This is the responsibility entrusted to human beings in the time they are given. If we neglect this, we will discover, each and every time, that the cost of our crusades is unbearably high. ....

The history of our species isn’t one of onward and upward progress: it is one of chaos and desperate rearguard actions, punctuated by all too short gasps of peace. We try to hold the dark but it’s never a single, concentrated line of defense holding across time, united by the same allegiances or the same threats. It is fragmented clumps of contention putting themselves in the way of the dark’s machinations, and the fact that they are often overwhelmed by it is no discrediting of the effort.

And it is the eschaton that is the final retroactive judgment that will unveil everything’s hidden significance and the obscured connections they bear to one another. Then the seemingly isolated, disparate string of defeats will be revealed to be episodes in the long campaign against the darkness, from a cup of cold water to rescuing a persecutor to a doomed last stand. The Beowulf-poet illuminated Tolkien’s instinct to see eschatological reversal as a source of hopeful activity. We, their unpromising descendants, can likewise contend for the present with the hope that the eschaton will vindicate and resurrect its good within its upheaval, but without triumphalism or presumption. Instead, we can adhere to Beckett’s like-hearted maxim, “No matter. Try again. Fail again. Fail better.”

This is our doom and our challenge: to fight the long defeat, the only fight in which there is real integrity due to its small aims and its recognition of human frailty. We may be summoned to many fights, to end this wrong or that evil, but the end of the evils and afflictions that characterize our existence will always asymptotically evade our reach. But if we would not be monsters, then we must strive all the same and leave their ultimate defeat to God. (more)

Ian Olson, "Monsters and the Long Defeat," Mere Orthodoxy, July 24, 2025.