Great political and philosophical debates regarding the problematic results of central planning in the 20th century are presented in this collection of essays from classical liberal thinkers such as Adam Smith, John Locke, and modern liberals of various persuasions. After discussing such issues as constitutionalism and security, freedom and the moral society, and cognitive individualism, modern upholders of classical liberalism are allowed to respond to their critics, making this contemporary articulation of the tenets of classical liberalism of interest to politicians, scientists, philosophers, and historians.