Go on, get out - last words are for fools who haven't said enough. To his housekeeper, who urged him to tell her his last words so she could write them down for posterity.

With disdain I will throw my gauntlet full in the fact of the world and see the collapse of this pygmy giant. Then will I wander god-like and victorious through the ruins of the world. And giving my words an active force, I will feel equal to the Creator.

Darwin's book is very important and serves me as a basis in natural science for the class struggle in history. One has to put up with the crude English method of development, of course. Despite all deficiencies not only is the death-blow dealt here for the first time to 'teleology' in the natural sciences, but their rational meaning is empirically explained.

Scientific truth is always paradox, if judged by everyday experience, which catches only the delusive appearance of things.

Language is as old as consciousness, language is practical, real consciousness that exists for other men as well, and only therefore does it also exist for me; language, like consciousness, only arises from the need, the necessity, of intercourse with other men.

The English have all the material requisites for the revolution. What they lack is the spirit of generalization and revolutionary ardour.

Although gold and silver are not by nature money, money is by nature gold and silver.