What an amazing speech! I read the whole thing. Frederick Douglas was a wise man. Someone should do a video reenactment of this for the whole country to see and understand. Not that all are willing to understand and some would find points to criticize, but Douglas is being realistic about the society at that time and is thankful for the greatness of Abraham Lincoln.
Even more impressive is the fact that Frederick Douglas taught himself to read while a slave, and was self educated. IIRC he was the most photographed man of his time.