THE UNSOLVED PROBLEMS OF BIOLOGY
In psychology, the science of the mind, there are different schools of thought about the relationship between mind and body. The most extreme materialist solution is to deny the reality of the mind and to assume that only the body is real. This was the approach of the behaviorist school, which dominated academic psychology for much of the twentieth century. Behaviorists confined their attention to objectively observable behavior and ignored the existence of consciousness. But behaviorism was not a testable scientific hypothesis; it was a methodology. It is now...