To me, the psychology behind the character is critical. So I work very hard to get into the mind of the man that I'm going to be playing, because number one, I want to understand why he's doing what he's doing. It's essential, it's absolutely essential.
In fact, it is Shakespeare who gives us the map of the mind. It is Shakespeare who invents Freudian Psychology. Freud finds ways of translating it into supposedly analytical vocabulary.
The psychology of a complex mind must differ almost as much from that of a simple, mechanized mind as its psychology would from ours; because something that must underlie and perhaps be even greater than sex is involved.
I wanted to be a neurologist. That seemed to be the most difficult, most intriguing, and the most important aspect of medicine, which had links with psychology, aggression, behavior, and human affairs.
Such being the nature of mental life, the business of psychology is primarily to describe in detail the various forms which attention or conation assumes upon the different levels of that life.