Cicero

Academica is a treatise on Academic Skepticism and its differences with Stoicism, written by Marcus Tullius Cicero in 45 BCE, two years before he was killed on the order of Mark Anthony, and the same year his beloved daughter Tullia had died in childbirth. No wonder Cicero wrote, at the beginning of Academica:

“Having been stricken to the ground by a most severe blow of fortune