This is what Thomas A. Edison wrote about the Doctor of the Future in 1903

Thomas A. Edison seems to be an endless source of witty quotes and quotable wisdom. I stumbled upon this one some days ago. Transfer his words from medicine to psychology (which practically did not exist at that time) and you get a near-perfect description of what Positive Psychology tries to accomplish in the realm of mental and emotional well-being.

Edison - Doctor of the Future
When I look at how often stuff like Prozac and Ritalin is given to people, there obviously is still a long way to go for us. But it will be done…