In Marx's view, what is relevant is the truth: what is real, objective, tangible. The truth of experience is contained in the "activity and the material conditions under which [people] live, both those which they find already existing and those produced by their activity" (Marx, German, p. 3). Human beings are uniquely capable of producing their conditions by producing "their means of subsistence, a step which is conditioned by their physical organization" (p. 3). How they produce their subsistence is a feature of the conditions under which they do so. He sees these conditions emerging out of the historical process of social evolution.
The question whether objective truth can be attributed to human thinking is not a question of theory but is a practical question. Man must prove the truth, i.e., the reality and power, the this-sidedness [Diesseitigkeit] of his thinking, in practice. The dispute over the reality of non-reality of thinking which is isolated from practice is a purely scholastic question (Marx, Theses, p. 3)
e touched because it will always be intangible, and (2) a practical, tangible, applied reality, which can be talked and thought about and in addition touched and directly experienced. In Marx's view, only what is tangible about experience is really worth talking or thinking about, and that would be the material conditions in which experience unfolds. That is in the background of this reference to objective truth:
Giddens, A. (1971). Capitalism and modern social theo4y; An analysis of the writings of Marx, Durkheim and Max Weber. Cambridge: Cambridge University Press.