City of prose and fantasy, of capitalist automation, its streets a triumph of cubism, its moral philosophy that of the dollar. New York impressed me … - Leon Trotsky

Generally speaking, by the way, that is the moral of the opponents of violence in politics: they renounce violence when it comes to introducing changes in what already exists, but in defense of the existing order they will not stop at the most ruthless acts.

Let us not forget that revolutions are accomplished through people, although they be nameless. Materialism does not ignore the feeling, thinking, and acting man, but explains him.

Dialectical thinking is related to vulgar thinking in the same way that a motion picture is related to a still photograph. The motion picture does not outlaw the still photograph but combines a series of them according to the laws of motion. Dialectics does not deny the syllogism, but teaches us to combine syllogisms in such a way as to bring our understanding closer to the eternally changing reality.