Abstract
This article discusses the reception of Plato's Timaeus in De docta ignorantia of Nicolas of Cusa (1401-1464), particularly about the philosophical concepts of being, time and the production of the cosmos. In this context, it is argued that the School of Chartres had played a significant role in the replacement of philosophical categories of Plato in the Christianity. But the contribution of Nicolas of Cusa to the history of the reception of the Timaeus in the Middle Ages it seems original because Nicolas, more than others, use this text in order to show that the world is a being-in-relation, as God is the relationship of three persons.