Ruth and I don’t have a perfect marriage, but we have a great one. In a perfect marriage, everything is always the finest and best imaginable; like a Greek statue, the proportions are exact and the finish is unblemished. Who knows any human beings like that? For a married couple to expect perfection in each other is unrealistic. We learned that even before we married.
The unblemished ideal exists only in “happily ever after” fairy tales. I think that there is some merit to a description I once read of a married couple as “happily incompatible.” Ruth likes to say, “If two people agree on everything, one of them is unnecessary.” The sooner we accept that as a fact of life, the better we will be able to adjust to each other and enjoy togetherness.
I took this from the section of his website that is dedicated to his wife. There are some beautiful poems of hers as well and in the "Memorial Gifts" section you can get a copy of her book, Sitting by My Laughing Fire.