Today, René Descartes (1596–1650) is perhaps best known as the father of modern philosophy and for his starring role as the doubting metaphysician, leading to his claim: cogito ergo sum or I think, therefore I am. But long before Descartes explored questions of subjectivity and epistemology, he was fascinated by natural philosophy. In the early seventeenth century, science and philosophy had not
... [Show full abstract] yet become separate disciplines. Descartes also had an interest in theatre. As a young man he often used theatrical metaphors:
Actors, taught not to let any embarrassment show on their faces, put on a mask. I will do the same. So far, I have been a spectator in this theatre which is the world, but I am now about to mount the stage and I come forward masked.1
Here, Descartes identifies his decision to be more active in his life with that of an audience member transforming into a dynamic masked actor, mounting the stage of the theatrum mundi, and unmasking the mysteries of the natural world. In another of his earliest writings, he continues his use of theatrical metaphor:
The sciences are at present masked, but if the masks were taken off, they would be revealed in all their beauty. If we could see how the sciences are linked together, we would find them no harder to retain in our minds than a series of numbers.2