"You are about to embark on a course of studies which...form a noble adventure. Except for those of you who will become teachers or dons, all that you will learn in the course of your studies will not be of the slightest possible use to you in later life -- save only this -- that if you work hard and intelligently you should be able to detect when a man is talking rot, and that, in my view, is the main, if not the sole, purpose of education."