[regarding a toothache] It made me realize how much one's mind is at the mercy of one's physical well-being, as at times I felt quite demented. My admiration for people who withhold information under torture has increased ten-fold since this ghastly night, for I am quite certain that even the threat of such pain would be enough to make me blab put any secret, and even to make up further disclosures if I felt that these might mitigate the pain at all. Truly a most shattering revelation.