Mockingbird Season: What is psychoanalysis?

A student asked his professor one day "Professor, what exactly is science?"
The professor thought for a while and said "Science is like trying to find a black cat in a dark room."

A few weeks later, the student came to the professor again and asked "What is philosophy, professor?"
"Well," said the professor after thinking for a while, "Philosophy is like trying to find a black cat in a dark room, when there really isn't a black cat."

On the last day of school, the student came to his professor. "So professor, what do you think psychoanalysis is?" he asked.
The professor smiled and said "Psychoanalysis is like trying to find a black cat in a dark room, when there really isn't a black cat, but you found one anyway...."