On Plato's "Timaeus"Until the Renaissance, the work of Calcidius offered the medieval West almost the only direct access to Plato's corpus not dispersed in fragments. In the 4th century CE, Calcidius translated into Latin an important section of Plato's Timaeus, complemented by extensive commentary and organized into coordinated parts. The first part is broadly devoted to the architecture of the world, to its intelligible structure. The second delves into the nature of