The change from ancient and medieval to modern science is one from "bodies" to "mass," "places" to "position," "motions" to "inertia," "tendencies" to "force." "Things" become aggregates of calculable mass located on the grid of space-time and ultimately a play of forces issuing in (partly) discernable and (variably) predictable jumps across that grid; even when new discoveries require a change in its design the grid remains a transparency laminated on the "things." Although it is undeniably "successful" the transparency remains mysterious: Newton's First Law applies to all things but no thing can behave the way it presupposes, and when Galileo searches for an inclined plane that all the real things in the world can roll along without resistance he can find it only in his head. Transparencies cloud. But to put them to question is not to deny their efficacy and to turn "anti-science."
-from David Farrell Krell's introduction to Martin Heidegger's "Modern Science, Metaphysics, and Mathematics", in Basic Writings

















