There is a difference between learning philosophy, and learning the history of philosophy. We don't need more historians; we need people able to think clearly about hard questions. Not understanding how the world came to be the way it is would be unfortunate, but the opportunity cost of making everyone study history is just too high.
Thinking about hard questions absolutely requires history, particularly in a field like economics. Studying macroeconomics without knowing the history of political economy is useless.
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There is a difference between learning philosophy, and learning the history of philosophy. We don't need more historians; we need people able to think clearly about hard questions. Not understanding how the world came to be the way it is would be unfortunate, but the opportunity cost of making everyone study history is just too high.
Thinking about hard questions absolutely requires history, particularly in a field like economics. Studying macroeconomics without knowing the history of political economy is useless.