Sunday, September 19:
I had to disturb R.'s night's rest somewhat because of my toothache, but he soon fell asleep again. He continues ruling lines. But cool, almost cold weather! Amicable conversations about this and that with my father, who today and yesterday played piano duets with Lulu.
In the evening a slight misunderstanding; my father observes that R. thinks nothing of his piano playing. R. at first very vexed, but then he puts things right in his own way, and it all ends gaily and peacefully.
(The day before yesterday R. aired his views about professors in the most delightfully amusing way and ended with the words, "If I were emperor, the first thing I should do would be to close all the universities.")
(On Wednesday, when R. was looking at a picture of the adoration of the infant Christ, he said: "In childhood all these signs of veneration, the shepherds and the kings and the angels, where were they all later on? That's what happened to Mozart.")
(On this same Wednesday R. talked about the butterfly, "this consummate image of the movement which in fact never dies.")