Academica

The Academica (also On Academic Skepticism, Academici Libri or Academic Books) is work in a fragmentary state written by the Academic Skeptic philosopher, Cicero, published in two editions. The first edition is referred to as the Academica Priora. It was released in May 45 BCE and comprised two books, known as the Catulus and the Lucullus. The Catulus has been lost. Cicero subsequently extensively revised and expanded the work, releasing a second edition comprising four books. Except for part of Book 1 and 36 fragments, all of the second edition has been lost. The second edition is referred to as Academica Posteriora or Academici Libri or Varro.