When I accepted the great honour of giving the Maudsley Lecture this year, I was instructed that my subject should be one of popular interest. The theme of “Education in Medicine” was chosen with some trepidation, not so much on account of any lack it might have of intrinsic interest, but because its elaboration might lead me to express views not entirely in harmony with popular opinion. “Education in medicine” rather than “medical education”, because I had it in mind to discuss the kind of instruction which, if within his reach, would enable the layman to recognize and appreciate some of the principles on which the practice of medicine is based and pursued. And my choice was determined by the conviction, which must be generally shared, that the practice of medicine is much handicapped by a want of understanding, and therefore of sympathy and co-operation, on the part of the public—a want of understanding, the causes of which might be explored with advantage to both parties concerned in it.