“I'm going to make myself seem more mysterious because I'm really not so mysterious. Or, if I am, it's because everybody is a mystery. Now that I'm older, at least I can be more amused by what people said.”

Ch 2
Man in Evolution (1941)

2017, My Response (September)

Personal correspondence (1839), as quoted in Dostoevsky: His Life and Work (1971) by Konstantin Mochulski, as translated by Michael A. Minihan, p. 17
Context: To study the meaning of man and of life — I am making significant progress here. I have faith in myself. Man is a mystery: if you spend your entire life trying to puzzle it out, then do not say that you have wasted your time. I occupy myself with this mystery, because I want to be a man.

Announcement speech https://www.washingtonpost.com/opinions/how-donald-trump-helped-democrats-pass-obamacare/2015/06/22/002f4c7c-18ea-11e5-ab92-c75ae6ab94b5_story.html (June 2015)
2010s, 2015

Mysterious Answers To Mysterious Questions http://lesswrong.com/lw/iu/mysterious_answers_to_mysterious_questions/ (August 2007); Yudkowsky credits the map/territory analogy to physicist/statistician Edwin Thompson Jaynes.

Comedy Central Presents: Dave Attell

p. 18 Dues Paid, Anastacia reapproches to U.S. https://books.google.it/books?id=Ug8EAAAAMBAJ&pg=PA18, Billboard, June 1, 2002.
General Quotes

Comedy Central Presents: Daniel Tosh (2003)

Variant: Wilem looked at me 'Why are you smiling?'

"I'm relieved", I said honestly." I was worried I had given myself cadmium poisoning, or had a mysterious disease. This is just someone trying to kill me.
Source: The Wise Man's Fear