The edition at this library reads:
"...here was the secret of happiness, about which philosophers had disputed for so many ages, at once discovered; happiness might now be bought for a penny, and carried in the waistcoat pocket; portable ecstasies might be had corked up in a pint bottle; and peace of mind could be sent down in gallons by the mail-coach..."
SOURCE: DeQuincey, Thomas "The Pleasures of Opium" Confessions of an Opium Eater, available at this library.
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