Drugs: “There’s no way to keep them from getting in. Anyone who wants drugs can get them. We make arrests where we can, and so what? Me, I’m betting … - Larry Niven

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Drugs: “There’s no way to keep them from getting in. Anyone who wants drugs can get them. We make arrests where we can, and so what? Me, I’m betting on Darwin.”
“How do you mean?”
“The next generation won’t use drugs because they’ll be descended from people who had better sense.”