An often overlooked figure today, Aristocles of Messene remains an important source for understanding the philosophical thought of early Pyrrhonism. In this book Dr. Chiesara shows Aristocles to be an accurate historian and trustworthy reporter of the major trends of first century philosophical thought including Platonism, Stoicism, Pyrrhonism, Protagorism, and Epicurism, and to offer precious additions to the history of ancient philosophy, in particular to the reconstruction not only of early but also of late, namely Aenesidemean, Pyrrhonism.