So all of these ideas are going to spread like wildfire. Really, they are responsible, these scientists and the Scartes and the idea of human beings through individualism, exploring the world and investigating and changing it. Before the French Revolution, the American Revolution, capitalism, communism, everything comes from that idea that we can develop philosophy and truth and investigate and explore. So let's go through a couple of other Enlightenment thinkers and then we can probably do it for you. I just have to cough really quick. And I would move on now and go to kind of our government philosophers. So Descartes is really the guy who said that we could do that.