Seneca · On care of health and peace of mind
Letters 104.1
I have run off to my villa at Nomentum, for what purpose, do you suppose? To escape the city? No; to shake off a fever which was surely working its way into my system. It had already got a grip upon me. My physician kept insisting that when the circulation was upset and irregular, disturbing the natural poise, the disease was under way. I therefore ordered my carriage to be made ready at once, and insisted on departing, in spite of my wife Paulina’s efforts to stop me; for I remembered my master Gallio’s words, when he began to develop a fever in Achaia and took ship at once, insisting that the disease was not of the body but of the place.
Seneca, Letters to Lucilius 104.1, translated by Richard Mott Gummere