This is a staff blog at Columbia University (Dept. of Statistics)...the funny thing is that the blog author who posted the quote sourced it at Wikipedia...and Wikipedia indicates its an unverified quote...nice try.
http://etext.virginia.edu/jefferson/quotations/jeff1325.htm
Do you see your complete quote on this page...or just a fraction of it with the fake part appended?
I know the founders’ sentiment in this. You can ignore the point if you’d like.