“I am an intelligent man.”-Dan Quayle. 
Clueless as Dan Quayle is, he never made the statement about brushing up on Latin when he was to go to Latin America.
He said so many stupid things. Y’don’t have to make stuff up. 
Well, Cambronne (the commander of Napoleon’s guard) is supposed to have said one of two things at the battle of Waterloo:
either
“La garde meurt, mais ne se rend pas”
meaning
The guard dies, but does not surrender
or else the more concise
“Merde!”
meaning
“Shit!”
He probably didn’t say both, so one is wrong.
P.S. That’s why the euphemism “le mot de Cambronne” is used for the swear word “merde”.
La franchise ne consiste pas à dire tout ce que l’on pense, mais à penser tout ce que l’on dit.
H. de Livry
“I consider myself the luckiest man on the face of the earth.”
Lou Gehrig said it, all right, but it came at the beginning of his farewell speech, not the end. (I think some movie put it at the end.)
“Nice guys finish last.” Leo Durocher actually said, “Nice guys finish eighth.” It was back in the days when the baseball leagues has eight teams each. (I’m pretty sure it was Durocher; otherwise someone correct me.)
My favorite intentional bungling of a quotation: “Those who do not learn from the mistakes of the past are condemned to misquote them.”
Well if he didn’t where did they get the idea he did?