English: Photograph taken by John Christian Haugeland II, depicting (left to right) Hubert Lederer Dreyfus, professor of philosophy at UC Berkeley, and Robert Purdy, one of John Haugeland's students from the University of Pittsburgh. The picture was taken outside Hubert Dreyfus's home at 1116 Sterling Avenue, Berkeley, California, USA (latitude 37.890758, longitude -122.256947, camera bearing 19° NNE).