Whose quote?

[Reduped]

Insanity: doing the same thing over and over again and expecting different results

Is this originally a qoute by John Dryden, or is it from Einstein?. I've seen it referenced to both, and a number of variations with the wording.

[Quizmonster]

I believe it is actually from Benjamin Franklin.

[Reduped]

Thanks for your answer, but this is just making it more complicated. I thought it was by Kipling, but when I started looking I found loads of sites attributing it to Einstein, some to Dryden, with a reference (Spanish Friar Act 2 scene 1) which I have no way of checking at present. I can't find any mention of Franklin in my searches, what makes you think it is one of his?

[Quizmonster]

Click here for one (British) quotations website. If you do a Google search using "Benjamin Franklin"+insanity you'll find thousands more!
The problem with proverbs/sayings is that, in some cases, they have been said - in slightly different forms - by many people through the ages.

[Reduped]

Thanks for that