I had a pupil who turned in a couple of well-crafted essays on Descartes, subjecting "cogito ergo sum" to effective and damaging criticism...This was the sort of thing the best students did, and it was thought to be Oxford intellectual training at its most sophistocated. But I said to him, "If all the criticisms you've made of Descartes are valid-- and on the whole I think they are-- why are we spending our time here now discussing him? Why have you just devoted a fortnight of your life to reading his main works and writing two essays about them? ...More to the point: if all these things are wrong with his ideas--and I think they are-- why is his name known to every educated person in the Western world today, three and a half centuries after his death? ...[text].. The pupil saw my point straight away but was at a loss to answer...[text].. Along such lines as these I made it a conscious principle of my teaching, whatever the subject, to get the pupil first of all to do the necessary learning, and the detailed work of analysis and criticism, and then to raise "Yes, but what is the point of all this-- why are we doing it?" questions. And students almost invariably found that it was only when that stage was reached that the really exciting interest and importantance of what it was they were doing opened up before their eyes.
Author: Bryan Magee