"Yes I have smoked crack cocaine. But no - do I? am I an addict? - No. Yes, I've made mistakes. All I can do now is apologize and move on."

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It is no defense of superstition and pseudoscience to say that it brings solace and comfort to people. . . . If solace and comfort are how we judge the worth of something, then consider that tobacco brings solace and comfort to smokers; alcohol brings it to drinkers; drugs of all kinds bring it to addicts; the fall of cards and the run of horses bring it to gamblers; cruelty and violence bring it to sociopaths. Judge by solace and comfort only and there is no behavior we ought to interfere with.

— Isaac Asimov