“I used to be afraid of dying. Now I’m afraid of not living. There’s a difference. We go through life planning for a future, but sometimes that future never comes.”

Source: It's Kind of a Funny Story

David to Dr. Singh
The Book of Illusions (2002)

Usher II (1950)
The Martian Chronicles (1950)
Source: Fahrenheit 451
Context: They began by controlling books of cartoons and then detective books and, of course, films, one way or another, one group or another, political bias, religious prejudice, union pressures; there was always a minority afraid of something, and a great majority afraid of the dark, afraid of the future, afraid of the past, afraid of the present, afraid of themselves and shadows of themselves.

Statement at age 80 in The New York Times (3 April 1970)

A Happy Death (1971)

Source: 1Q84

Source: Lamb: The Gospel According to Biff, Christ's Childhood Pal