This quote is frequently attributed to Karl Marx and anonymous, but occurances of Samuel Johnson, Rita Disbennett, Delenn, Jane Austen and Richard Baxterand have been spotted as well. One source claimed it an Irish proverb. Here are some variations on a theme:

• "The road to hell is paved with good intentions and littered with sloppy analysis." -anonymous
• "The ends justify the means, thought Aziraphale. And the road to Hell is paved with good intentions. [Footnote: This is not actually true. The road to Hell is paved with frozen door-to-door salesmen. On weekends many of the younger demons go ice-skating down it.]" - Terry Pratchett / Neil Gaiman
• "The road to Prague is paved with Russian tanks armed with the best intentions." - Guillermo Cabrera Infante
• "The greatest harm can result from the best intentions." - Terry Goodkind
• "The road to the patent office is paved with good inventions." - unknown
• "The road to ignorance is paved with good editions." - unknown

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