... All the same, without being morbid, or giving way to —to memories and so on, I must confess that there does seem to me something sad in life. It is hard to say what it is. I don't mean the sorrow that we all know, like illness and poverty and death. No, it is something different. It is there, deep down, deep down, part of one, like one's breathing. However hard I work and tire myself I have only to stop to know it is there, waiting. I often wonder if everybody feels the same. One can never know. But isn't it extraordinary that under his sweet, joyful little singing it was just this—sadness? —Ah, what is it?—that I heard.