"But what experience and history teach is that nations and governments have never learned anything from history and have never acted in accordance with the lessons that could have been drawn from it."--Hegel

"But what experience and history teach is that nations and governments have never learned anything from history and have never acted in accordance with the lessons that could have been drawn from it."
--Hegel

Which has been condensed to:

"The only thing we learn from history is that we learn nothing from history"