"Now I suddenly saw that I could be something to someone, simply because I was there, and that that person was happy because I was with her. Said like that, it sounds very simple; but when you think about it, it is a tremendous thing, a thing that knows no end It is something that can break and transform one. It is love and yet something more —something for which one can live. A man cannot live for love. But for a human being, perhaps . . I wanted to say something, but I could not. It is difficult to find words when one really has something to say. And even if one knows the right words, then one is ashamed to say them. All these words belong to other, earlier centuries. Our time has not the words yet to express its feelings. We can only be offhand—anything else rings false."
January 1, 1970
https://en.wikiquote.org/wiki/Three_Comrades