Even here there might be a mistake: human prescriptions were fallible things: Lydgate had said that treatment had hastened death,—why not his own method of treatment?
And from the first there was to be a Latin dedication about which everything was uncertain except that it was not to be addressed to Carp: it was a poisonous regret to Mr. Casaubon that he had once addressed a dedication to Carp in which he had numbered that member of the animal kingdom among the viros nullo aevo perituros, a mistake which would infallibly lay the dedicator open to ridicule in the next age, and might even be chuckled over by Pike and Tench in the present.
That the money came from Bulstrode would infallibly have been guessed even if there had been no direct evidence of it; for it had beforehand entered into the gossip about Lydgate’s affairs, that neither his father-in-law nor his own family would do anything for him, and direct evidence was furnished not only by a clerk at the Bank, but by innocent Mrs. Bulstrode herself, who mentioned the loan to Mrs. Plymdale, who mentioned it to her daughter-in-law of the house of Toller, who…
"Then I can no longer hesitate as to my course," said Lydgate; "but the first thing I must impress on you is that my conclusions are doubly uncertain—uncertain not only because of my fallibility, but because diseases of the heart are eminently difficult to found predictions on.
There are no more uses of "infallible" in the book.