At its most effective, the censor’s lie actually succeeds in replacing the artist’s truth. That which is censored is thought to have deserved censorship. Boat-rocking is deplored.

Salman Rushdie (b. 1947) Indian novelist

Speech (2012-05-06), Arthur Miller Freedom to Write Lecture, PEN World Voices Festival, New York City
    (Source)

Printed as an essay (2012-05-11), "On Censorship," The New Yorker magazine.