"For my own part, I do not know what the sweat and blood of this life mean, if they mean anything short of this. If this life be not a real fight, in which something is eternally gained for the universe by success, it is no better than a game of private theatricals from which we may withdraw at will. But it feels like a real fight — as if there were something really wild in the universe which we, with all our idealities and faithfullnesses, are needed to redeem: and first of all to redeem our own hearts from atheism and fears. For such a half-wild, half-saved universe our nature is adapted."
January 1, 1970
https://en.wikiquote.org/wiki/Atheism