You can’t have a circle that doesn’t follow that rule. Veteran be strong be brave be humble be badass poster. I also cannot have a perfect entity without the most important feature that is existence. A strange way of thinking. It is a rational thinking, like Socrates and Plato, Descartes believes there is a connection between reason and living beings. The more obvious an object is to one’s reason, the more certain it will exist. So he came to the conclusion that he is a thinking man and that existence is a perfect being. That’s right and from this point on, he went on.