I counter with:
Many things do not happen as they should, and most things do not happen at all. It is the duty of the conscientious historian to correct these defects.
-- Herodotus
What is the source of this quote? Googling it turns up only this thread. I searched for the word "historian" in the works of Herodotus available at Gutenberg.org, but with no luck.
(Since there didn't seem to be one for this month, and I just ran across a nice quote.)
A monthly thread for posting any interesting rationality-related quotes you've seen recently on the Internet, or had stored in your quotesfile for ages.