Where speculation ends - in real life - there real, positive science begins: the representation of the practical activity, of the practical process of development of men. Empty talk about consciousness ceases, and real knowledge has to take place. (Karl Marx)

Where speculation ends - in real life - there real, positive science begins: the representation of the practical activity, of the practical process of development of men. Empty talk about consciousness ceases, and real knowledge has to take place.

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activity consciousness development empty men knowledge life place positive practical process real representation science speculation take talk ends

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