Well we need to go back to Nietzsche who argued that "will to power" was one of the main defining characteristics of humans. Irrespective of the social implications of that, my own interest is in "power over the physical world" which manifests as "prediction and control" largely via what we call "science".
Clearly on this point, language is central in segmenting "the world" because the lowest level of scientific measurement is "nominal" (naming of the identity of a "thing").
Heidegger's development of the "will" theme, manifested in his concepts of "existence" and "authentic living". As stated above, for Heidegger, "existence" is a transient state when humans
are "self aware" and aware of "a segmented world". That world contained two classes of objects "present at hand" and "ready to hand" which are clearly observer defined in terms of their functional attributes. (i.e objects do not possess
properties in their own right) The "taking stock of oneself with the power to act and choose", and the pursuit and selection of such choice was what he meant by "authentic living", as opposed to somnolent following of one's conditioning.
Later, Heidegger shifted his focus to the power of language as a conditioning agent which could effectively curtail the choices of "will". That shift is epitomized by his statement "Language speaks the man". (Social determinism perhaps ?)
The focus on language as the central issue in restricting paradigms of thinking ( the Sapir Whorf hypothesis) was similarly investigated by Wittgenstein, and later Rorty and the post-modernists such as Foucault and Derrida. In particular, Derrida concerned himself with debunking dichotomous thinking ( like free will versus determinism) and argued that each pole of a dichotomy necessarily implied the "existence" of the other.