If you study any philosophical treatise of our present era you will with almost absolute certainty not encounter the concept, and much less the expression, “the truth of all things.” This is no mere accident. The generally prevailing philosophical thinking of our time has no room at all for this concept; it is, as it were, “not provided for.” It makes sense to speak of truth with regard to thoughts, ideas, statements, opinions””but not with regard to things. Our judgments regarding reality may be true (or false); but to label as “true” reality itself, the “things,” appears to be rather meaningless, mere nonsense. Things are real, not “true”!
Looking at the historical development of this situation, we find that there is much more to it than the simple fact of a certain concept or expression not being used; we find not merely the “neutral” absence, as it were, of a certain way of thinking. No, the nonuse and absence of the concept, “the truth of all things,” is rather the result of a long process of biased discrimination and suppression or, to use a less aggressive term: of elimination.
–Josef Pieper: An Anthology (San Francisco: Ignatius Press, 1989 E.T. of the 1981 original), pp. 95-96