Why Ezekiel Bulver must be proven wrong

I see Bulverism at work in every political argument. The capitalists must be bad economists because we know why they want capitalism, and equally the Communists must he bad economists because we know why they want Communism. Thus, the Bulverists on both sides. In reality, of course, either the doctrines of the capitalists are false, or the doctrines of the Communists, or both; but you can only find out the rights and wrongs by reasoning — never by being rude about your opponent’s psychology.
    Until Bulverism is crushed, reason can play no effective part in human affairs. Each side snatches it early as a weapon against the other; but between the two reason itself is discredited. And why should reason not be discredited? It would be easy. in answer, to point to the present state of the world, but the real answer is even more immediate. The forces discrediting reason, themselves depend on reasoning. You must reason even to Bulverize. You are trying to prove that all proofs are invalid. If you fail, you fail. If you succeed, then you fail even more — for the proof that all proofs are invalid must be invalid itself.
C.S. Lewis, "'Bulverism,'" God in the Dock (Eerdmans: 1970) 274.

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