Since man first became interested in the processes taking place in his own mind, his dreams and emotions and thoughts, he has wondered if he could understand these relatively elusive processes as thoroughly as he could the more stable facts of the material universe. And ever since Epictetus and Aristotle began to collect the facts of mental life and formulate them into the laws which were later to become the basis of the study of psychology, philosophers and theologians and natural scientists have debated whether or not this study of the human mind constituted a real science. The champions of both sides of the question are worthy of attention. Epictetus and Aristotle considered their psycho…
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