“I saw that my witticism was unperceived and quietly replaced it in the treasury of my mind.”
Flann O'Brien book At Swim-Two-Birds
Source: "At Swim-Two-Birds" (1939)

At Swim-Two-Birds is a 1939 novel by Irish writer Brian O'Nolan, writing under the pseudonym Flann O'Brien. It is widely considered to be O'Brien's masterpiece, and one of the most sophisticated examples of metafiction.
“I saw that my witticism was unperceived and quietly replaced it in the treasury of my mind.”
Flann O'Brien book At Swim-Two-Birds
Source: "At Swim-Two-Birds" (1939)