I stay in the house almost all the time and only go out by gondola or carriage, for the pain in my chest or the narrowness of the chest prevents me from walking.
Letter of November 16, 1737 to Marchese Guido Bentivoglio d'Aragona. As quoted in: Vivaldi: Red Priest of Venice (Lion Books, 2010), p. 25. Variant translation: "For this reason I spend my life almost entirely at home, leaving my house only in a gondola or a carriage, because with my chest complaint, known as heart seizure, I cannot walk."