"The nature of a species can be changed completely as a result of the modifications resulting from the passage through a series of environments."

"Bakunin was unquestionably inferior to Marx as a political economist. His economics are Marxist, and he subscribed enthusiastically to Marx's theory of surplus value and dissection of the capitalist system."

"True organisation like true liberty belongs to the future -- and the Socialist Commonwealth, or, as I have termed it elsewhere, the Anarchist Republic."

"Socialists, so called, have degraded Marx's declaration of a political class struggle to mean something which it never did and never can mean, namely, parliamentary action."

"Man as we know him, in the highest actual stage of development, loves learning, yearns alter truth, and identifies his personal happiness with the realization and maintenance of his ideals."

"Out of the class or property social system there cannot emerge a "representation" which signifies an honest attempt to secure just exposition of principles and expressions of antagonistic interests."