Often the invention of atool suggested operations not in mind when it was in- vented and thus carried the perfecting of operations still fur- ther. There is thus no apriori test or rule for the determina- tion of the operations which define ideas. They are themselves experimentally developed in the course of actual inquiries. They originated in what men naturally do and are tested and improved in the course of doing.
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caj2167 - (no access) - dewey_quest.pdf, p136
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