6) The Wealth of Nations, Adam Smith
…to learn that capitalism is an economy of greed, a force of nature unto itself.
Published right back in 1776 this book by the Scottish author charted the growth and wealth of nations. Smith talks about the division of labor, productivity and free markets. He was one of the earliest and loudest anti-Capitalist thinkers:
Our merchants and masters complain much of the bad effects of high wages in raising the price and lessening the sale of goods. They say nothing concerning the bad effects of high profits. They are silent with regard to the pernicious effects of their own gains. They complain only of those of other people.
Wherever there is great property, there is great inequality.