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A Little Book in C Major, ch. 5, § 30 (1916) - Mencken, H. L. | WIST Quotations
Firmness in decision is often merely a form of stupidity. It indicates an inability to think the same thing out twice. Variant: FIRMNESS: A form of stupidity: proof of an inability to think the same thing out twice. [A Book of Burlesques, "The Jazz Webster" (1924)]