Within the phenomenological tradition, there has long been a clear awareness that science and philosophy are not merely aggregations or even systematic and internally consistent sets of propositions, but also practices that are undertaken by human beings with certain aims and interests. One recalls, for instance, Martin Heidegger’s important insight articulated at the very beginning of Being and Time, that science is something human beings do – or as he puts it, a Verhalten des Daseins.Martin Heidegger, Sein und Zeit (Tübingen: Niemeyer 1956), pp. 11–13; translated by John Macquarrie and Edward Robinson as Being and Time (New York: Harper & Row, 1962), pp. 32–33. Moreover, even before Heidegger, Edmund Husserl, who in the Logical Investigat...