Martin Heidegger and Isaac Newton in Search of the Truth (2024) 绘画 由 Noël Van Hoof

Martin Heidegger – Being and Time – BT226/227

Dasein, as constituted by disclosedness, is essentially in the truth. Disclosedness is a kind of Being which is essential to Dasein. 'There is' truth only in so far as Dasein i s and so long as Dasein i s. Entities are uncovered only when Dasein is; and only as long as Dasein is, are they disclosed. Newton's laws, the principle of contradiction, any truth whatever – these are true only as long as Dasein is. Before there was any Dasein, there was no truth; nor will there be any after Dasein is no more. For in such a case truth as disclosedness, uncovering, and uncoveredness, cannot be. Before Newton's laws were discovered, they were not 'true'; it does not follow that they were false, or even that they would become false if ontically no discoveredness were any longer possible. Just as little does this 'restriction' imply that the Being-true of 'truths' has in any way been diminished.
To say that before Newton his laws were neither true nor false, cannot signify that before him there were no such entities as have been uncovered and pointed out by those laws. Through Newton the laws became true and with them, entities became accessible in themselves to Dasein. Once entities have been uncovered, they show themselves precisely as entities which beforehand already were. Such uncovering is the kind of Being which belongs to 'truth'.
That there are 'eternal truths' will not be adequately proved until someone has succeeded in demonstrating that Dasein has been and will be for all eternity. As long as such a proof is still outstanding, this principle remains a fanciful contention which does not gain in legitimacy from having philosophers commonly 'believe' it.

(Translation by John Macquarrie and Edward Robinson)

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Martin HeideggerIsaac Newton