Tiptree on Tolkien

From a 1974 essay, "Harvesting the Sea," by James Tiptree Jr. (only later revealed as Alice B. Sheldon), reprinted in the collection Meet Me at Infinity (Tor, 2000), p. 265:

The main thing I've been into is a serious study of Tolkien's Ring and reading H.G. Wells for the first time. I will spare you my conclusions beyond saying I take both very seriously indeed. One of the aspects which they share is that they are both strategies for handling almost unbearable grief. In Wells's Days of the Comet, the fantastic, gut-tearing paean of hope reveals the wound beneath; it is the blinded crying for light. In Tolkien the held-back cry of bitter loss becomes lacerating; it is interesting to read that his first memories were of the ravaging of his childhood lands by the devastations of the railroad, and that in his youth, by 1918, all but one of his close friends had been killed in the war. His prescription is go on, go on; it stinks, it hurts, but go on. Somehow go on. Wells goes on, too; both men are, well, sturdy. Brave, one might have said in a simpler age. Both tremble towards sentimentality, are saved at each last moment by their brilliantly observing eyes, their regard for what is, no matter how dismaying. And of course with Tolkien, the rich airy landscape of words, his almost magical grasp.

I don't recall this unusual, interesting, and observant comment being quoted in the Tolkien literature before; so here it is.