Writing to William Farrel, John Calvin alludes to the death of Augustin Courault, a zealous preacher of the Reformation in Paris and Geneva. From the book's footnote: "Advanced in years, he had become blind. His death, which was at first attributed to poison, caused the deepest regret to both Farel and Calvin."
Distress and wretchedness during the day seems only to prepare a lodging for the more painful and excruciating thoughts of the night. It is not merely the want of sleep, to which custom has so inured me, by which I am harassed, but I am utterly exhausted by these melancholy thoughts all night long, than which I find there is nothing more destructive for my health.