In the domain of Political Economy, free scientific inquiry meets not merely the same enemies as in all other domains. The peculiar nature of the material it deals with, summons as foes into the field of battle the most violent, mean and malignant passions of the human breast, the Furies of private interest.

Follow your own path, no matter what people say.

Nature is man's inorganic body -- that is to say, nature insofar as it is not the human body. Man lives from nature -- i.e., nature is his body -- and he must maintain a continuing dialogue with it is he is not to die. To say that man's physical and mental life is linked to nature simply means that nature is linked to itself, for man is a part of nature.

It is absolutely impossible to transcend the laws of nature. What can change in historically different circumstances is only the form in which these laws expose themselves.

The democratic concept of man is false, because it is Christian. The democratic concept holds that . . . each man is a sovereign being. This is the illusion, dream, and postulate of Christianity.

...the first step in the revolution by the working class, is to raise the proletariat to the position of ruling class, to win the battle for democracy.

Private property has made us so stupid and one-sided that an object is only ours when we have it