This volume provides a critical edition of the original text, an English translation, a substantial introduction, and comprehensive annotation.

This is an edition of one of the crucial texts of Renaissance scepticism, Quod nihil scitur, by the Portuguese scholar Franciso Sanches. The treatise, first published in 1581, is a refutation of Aaristotelian dialectics and scientific theory in the search for a true scientific method. This volume provides a critical edition of the original text, an English translation, a substantial introduction, and comprehensive annotation.