Summary

Portrait of Boris Sidis Boris Sidis The Foundations of Normal and Abnormal Psychology… (1914 | notes)

We cannot refute the philosopher who would regard all such manifestations as so many physiological processes without any conscious accompaniment. For though every one is directly conscious of his own mental life, no one can experience directly the mental life of another. We cannot inspect directly the psychic processes that go on in other living beings, or in our fellow men. Mind is inferred from action, from behavior. Reactions, adjustments to environment, accompanied by consciousness, by intelligence in us, are rightly judged to have the same accompaniment in other beings, in our neighbours.
Source: Wikisource

Portrait of Boris Sidis Boris Sidis The Foundations of Normal and Abnormal Psychology… (1914 | notes)

While they should be used for the sake of a better elucidation of the facts, it is not good scientific sense to sacrifice to them the very material of the science of psychology. Sensations, ideas, feelings, emotions, are after all the direct data of the psychologist, while physiological processes and currents are purely hypothetical.
Source: Wikisource

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