A Most Evident Mystery

A Most Evident Mystery What one is most convinced of is his or her own existence. Despite this, in purely scientific terms, everyone is a mystery. For man is not what he physically appears to be, but consists of what he calls I, and the I is not observable. That is why when the philosopher Rene Descartes (1596-1650) wanted to give proof of his own existence, he did not say: “I consist of a body that is observable, therefore I exist.” Instead he had to say: “I think, therefore I exist.” Man undoubtedly has an observable existence. We all know that man exists. But, in fact, this man’s existence is at the level