Introduction

“Thinking is skilled work. It is not true that we are naturally endowed with the ability to think clearly and logically—without learning how, or without practicing... People with untrained minds should no more expect to think clearly and logically than those people who have never learned and never practiced can expect to find themselves good carpenters, golfers, bridge players, or pianists. Yet our world is full of people who apparently do suppose that thinking is entirely unskilled work; that thinking clearly and accurately is so easy and so ‘natural’ that ‘anybody can think;’ and that any person’s thinking is quite as reliable as any other person’s.”

—A. E. Mander, Clear Thinking: Logic for Every Man, 1938

There is nothing we do ...

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