""Will to truth" does not mean "I do not want to let myself be deceived" but—there is no alternative—"I will not deceive, not even myself"; and with that we stand on moral ground. . . . You will have gathered what I am getting at, namely, that it is still a metaphysical faith upon which our faith in science rests—that even we knowers of today, we godless anti-metaphysicians, still take our fire, too, from the flame lit by the thousand-year-old faith, the Christian faith which was also Plato's faith, that God is truth; that truth is divine."
January 1, 1970
https://en.wikiquote.org/wiki/Christian_atheism