These are my favourites(borrowed from wikiquotes for accuracy)
"You be good. See you tomorrow. I love you."
Who: Alex, African Grey Parrot used in comparative psychology research at Brandeis University
Note: Spoken to his handler, Dr. Irene Pepperberg, when she put him in his cage for the night; he was found dead the next morning
Take a step forward lads - it'll be easier that way.
Who: Robert Erskine Childers, last words, to his firing squad, Irish Civil War 1922
"Pardonnez-moi, monsieur. Je ne l'ai pas fait exprès."
Translation: Pardon me, sir. I did not do it on purpose.
Who: Marie Antoinette
Note: As she approached the guillotine, convicted of treason and about to be beheaded, she accidentally stepped on the foot of her executioner.
Je vais ou je vas mourir, l'un et l'autre se dit ou se disent. ( French )
Translation : I am about to -- or I am going to -- die: either expression is correct.
Who: Dominique Bouhours, French grammarian