"Here is the chalk." This is a truth; and here and the now hereby characterize the chalk so that we emphasize by saying; the chalk, which means "this… - Martin Heidegger

"Here is the chalk." This is a truth; and here and the now hereby characterize the chalk so that we emphasize by saying; the chalk, which means "this." We take a scrap of paper and we write the truth down: "Here is the chalk." We lay this written statement beside the thing of which it is the truth. After the lecture is finished both doors are opened, the classroom is aired, there will be a draft, and the scrap of paper, let us suppose, will flutter out into the corridor. A student finds it on his way to the cafeteria, reads the sentence. "Here is the chalk," and ascertains that this is not true at all. Through the draft the truth has become an untruth. Strange that a truth should depend on a gust of wind. ... We have made the truth about the chalk independent of us and entrusted it to a scrap of paper. p. 29-30