“Life, for people, begins to crumble on the edges; they don't realize it.”

Review of Nausea by Jean-Paul Sartre, published in the newspaper Alger Républicain (20 October 1938), p. 5; also quoted in Albert Camus and the Philosophy of the Absurd (2002) by Avi Sagi, p. 43
Context: It is the failing of a certain literature to believe that life is tragic because it is wretched.
Life can be magnificent and overwhelming — that is its whole tragedy. Without beauty, love, or danger it would be almost easy to live. And M. Sartre's hero does not perhaps give us the real meaning of his anguish when he insists on those aspects of man he finds repugnant, instead of basing his reasons for despair on certain of man's signs of greatness.
The realization that life is absurd cannot be an end, but only a beginning. This is a truth nearly all great minds have taken as their starting point. It is not this discovery that is interesting, but the consequences and rules of action drawn from it.

Variant: Prayer begins where our power ends.

2016, Interview with CNBC's John Harwood (August 22, 2016)

Source: Faithless

As quoted in Zen and the Art of Making a Living : A Practical Guide to Creative Career Design (1999) by Laurence G. Boldt, p. 118

Source: Looking for Alibrandi

Knowing Yourself: The True in the False (1996)

page 51.
Quarks, Chaos & Christianity (1995)