During the last ten years of his life my father gradually lost the power of...

During the last ten years of his life my father gradually lost the power of speech. At first he simply had trouble calling up certain words or would say similar words instead and then immediately laugh at himself. In the end he had only a handful of words left, and all his attempts at saying anything more substantial resulted in one of the last sentences he could articulate: 'That's strange.'
Whenever he said 'That's strange,' his eyes would express an infinite astonishment at knowing everything and being able to say nothing. Things lost their names and merged into a single, undifferentiated reality. I was the only one who by talking to him could temporarily transform that nameless infinity into the world of clearly named entities.