The Theory of Moral Sentiments

The Roman Empire the Empire of the Edomite

The Teachings of Ptahhotep: The Oldest Book in the World

The Strenuous Life

Teachings of Ptahhotep

Capitalism, Socialism, and Democracy: Exploring the Evolution of Economic Systems and the Future of Democracy

The Crowd - A Study of the Popular Mind

Toward a Psychology of Being

Public Opinion

The Disputation at Barcelona