Those who cannot remember the past are condemned to repeat it.
"The Life of Reason: The Phases of Human Progress", Vol. I, Reason in Common Sense by George Santayana, 1905-1906.
![Those who cannot remember the past are condemned to repeat it.](http://cdn.myquotes.org/images/george-santayana/those-who-cannot-remember-the-past-are-condemned-to-repeat-it.jpg)
Those who cannot remember the past are condemned to repeat it.