There are three kinds of lies: lies, damned lies, and statistics.

Benjamin Disraeli - lies statistics - wist_info

Benjamin Disraeli (1804-1881) English politician and author
(Attributed)
    (Source)

Attributed by Mark Twain in "Chapters from My Autobiography" (Apr 1904), North American Review (7 Sep 1906): "Figures often beguile me, particularly when I have the arranging of them myself; in which case the remark attributed to Disraeli would often apply with justice and force: 'There are three kinds of lies: lies, damned lies, and statistics.'"

The phrase has not been found in any of Disraeli's works, and he is considered unlikely to be the originator. Variants of the phrase date back a century or more from Twain's reference. More discussion about this quotation here: