As a scientist (a hard scientist with a soft heart) before this audience, I believe it is appropriate to quote a remark made by Ed Bloom, a departed colleague. Once, when addressing the Modern Language Association, Ed said he felt like a lion thrown to the Christians.

I was very much influenced by Freud's writings on psychoanalysis, particularly by his theory of dreams. I didn't believe all of Freud's elaborations, but I thought he touched on concepts that were enormously deep, such as the unconscious, the conscious, and the very powerful interaction between them. It is of great interest to me since biologists and neurophysiologists expect to find the underlying physical correlate for such concepts as the unconscious. For example, we might say that the unconscious is related to stored memory and what is conscious is memory in play.

I seem to remember that Freud believed we would eventually find the biological basis for psychoanalytic concepts. But at the beginning of the past century that time had not arrived. So the best way was to proceed without such a basis. He was right.