“The supremacy of thought (consciousness) also pronounces the impotence of thought in an empirical world which philosophy transcends and corrects — in thought. The rationality in the name of which philosophy passed its judgments obtained that abstract and general purity” which made it immune against the world in which one had to live. With the exception of the materialistic “heretics,” philosophic thought was rarely afflicted by the afflictions of human existence. Paradoxically, it is precisely the critical intent in philosophic thought which leads to the idealistic purifications critical intent which aims at the empirical world as a whole, and not merely at certain modes of thinking or behaving within it. Defining its concepts in terms of potentialities which are of an essentially different order of thought and existence, the philosophic critique finds itself blocked by the reality from which it dissociates itself, and proceeds to construct a realm of Reason purged from empirical contingency. The two dimensions of thought — that of the essential and that of — the apparent truths — no longer interfere with each other, and their concrete dialectical relation becomes an abstract epistemological or ontological relation. The judgments passed on the given reality are replaced by propositions defining the general forms of thought, objects of thought, and relations between thought and its objects. The subject of thought becomes the pure and universal form of subjectivity, from which all particulars are removed.”
Source: One-Dimensional Man (1964), pp. 135-136
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Herbert Marcuse 105
German philosopher, sociologist, and political theorist 1898–1979Related quotes

Source: Essays in the Philosophy of Language, 1967, p. 20-21

Christian Mysticism (1899), Preface
Context: The phase of thought or feeling which we call Mysticism has its origin in that which is the raw material of all religion, and perhaps of all philosophy and art as well, namely, that dim consciousness of the beyond, which is part of our nature as human beings. Men have given different names to these "obstinate questionings of sense and outward things." We may call them, if we will, a sort of higher instinct, perhaps an anticipation of the evolutionary process; or an extension of the frontier of consciousness; or, in religious language, the voice of God speaking to us. Mysticism arises when we try to bring this higher consciousness into relation with the other contents of our minds.
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Source: The Way Towards The Blessed Life or the Doctrine of Religion 1806, P. 56

Source: Striking Thoughts (2000), p. 21
Context: If thought exists, I who think and the world about which I think also exist; the one exists but for the other, having no possible separation between them. Therefore, the world and I are both in active correlation; I am that which sees the world, and the world is that which is seen by me. I exist for the world and the world exists for me. … One sure and primary and fundamental fact is the joint existence of a subject and of its world. The one does not exist without the other. I acquire no understanding of myself except as I take account of objects, of the surroundings. I do not think unless I think of things — and there I find myself.