Terms like “logic” or “psychology” are applied in many different senses, but, among others, they are used as labels for certain disciplines called sciences. “Logic” is defined as the “science of the laws of thought”. Obviously, then, to produce “logic” we should have to study all forms of human behavior connected directly with mentation; we should have to study not only the mentations in the daily life of the average Smiths, Browns., but we should have to study the mentations of Joneses and Whites when their “mind” is at its best; namely, when they mathematize, scientize., and we should also have to study the mentations of those whom we call “insane”, when they use their “mind” at its worst.
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