Capitalism had many supporters as well as critics. The supporters emphasized that the concepts of capitalism were right and that they were supposed to remain like that. However, on the side of critics, they criticized capitalism in various ways by bringing in ideas that were foreign to capitalism. In order to analyze these ideas foreign to capitalism, we are going to analyze Marx and Engels' The Communist Manifesto, Marx's Capital and the Degradation of work, Tonnies vs. Simmel, DE Tocqueville on Capitalism in America, Cultural sources of capitalism-Max Weber, Mathew Arnold on Capitalism and Culture, and The German debate of rationalization.