An old favorite:
When I was attending University before joining the US military I studied electrical engineering. As an elective I took a course in statistics.
The opening page of the book of statistics we used in that class had in large bold typeface the phrase, There are Lies, There are Damned Lies, then, There are Statistics.
I understood the meaning then. In all the years since I have come to realize the intent of the author in placing that phrase, that saying, as the opening to his textbook on the subject.
An old favorite: