Those unable to catalog the past are doomed to repeat it.

Those who forget the past are doomed to repeat it

Those who don't know history are doomed to repeat it.

He who doesn't understand history is doomed to repeat it.

Some of the bravest and most resourceful people in the world have come to bad ends

I will love you as the iceberg loves the ship, and the passengers love the lifeboat and the lifeboat loves the teeth of the sperm whale, and the sperm whale loves the flavor of naval uniforms.