This book contains writings by philosophers Karl Marx, Friedrich Engels, Mohandas Gandhi, Jacques Rousseau, and others. The book is sort of long (only 300 pages, but they are long), but so far I've read Marx and Rousseau. Rousseau states how mankind has established social divisions throughout history, and how they are unfair. He tells a story of how different people put themselves in higher positions just because they were more fit or just more fortunate. Marx describes how the great powers of Europe are starting to recognize communists and socialists as a problem in 19th-century Europe. He also describes that the burgoisie controls society and how it has evolve from other higher classes in history, such as patricians in Ancient Rome or feudal lords in the Middle Ages, and how the proletariat is going to start a global worker's revolution.