I remember him because I'm a vegetarian and he's the guy who said that animals were machines. But human beings, human beings have the power of reason and that is an important concept. He's taking the idea of the scientific revolution that explores the natural world and what he's basically saying is that we can do the same thing with human reason to figure out the world around us in terms of government or maybe how we think or how we relate to each other, more personal things. So this is big, this is really individualism. Before it was authority told you what the truth was and Descartes is saying that we can be the factors, that we can investigate and explore through our mind and our reason ideas that can spread like wildfire and affect the world around us. So instead of the world affecting us, we in fact are going to be affecting the world. We are the ones with the flashlight, that is the darkness out there of the middle ages and it's time for us to start doing it because the Catholic Church is certainly not going to be doing it.