Custom (n.) is petrification, nothing but dynamite can dislodge it for a century.
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Custom (n.) is inherently without justification. The less there is to justify a traditional custom, the harder it is to get rid of it.
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Custom (n.) is ultimately a crime persevered in a thousand centuries and thus ceases to be a crime, and becomes a virtue.
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Custom (n.) is a fashion grown sacred through immemorial observance.
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Custom (n.) is a law confessedly stronger than written law, everywhere.