It is better to forget

“Nothing in the world is more dangerous than sincere ignorance and conscientious stupidity.”
Martin Luther King

“Ignorance is the night of the mind, but a night without moon and star. “
Confucius Chinese philosopher & reformer (551 BC - 479 BC)

"Nothing is more terrible than to see ignorance in action."
J. W. Goethe (1749-1832) German poet, novelist and dramatist.