Reliable website for quotations?

Hi. I'm writing a research paper in which I have to cite sources. I have a quote from Joseph Stalin I'd like to use but I can't find any reliable-sounding websites. I believe all of my sources, as they all say the same thing, but I think my teacher might mark off for "brainyquote.com" or... show more Hi. I'm writing a research paper in which I have to cite sources. I have a quote from Joseph Stalin I'd like to use but I can't find any reliable-sounding websites. I believe all of my sources, as they all say the same thing, but I think my teacher might mark off for "brainyquote.com" or something like that. Anyone know of a website that has quotations but at least sounds reliable?
Update: Please no one post "wikiquote". Our teacher said no wikipedia related websites may be used.
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