Eve doubted God, and I as a child of God am now to be exactly the opposite: I am to believe him. Eve doubted, and mankind in revolt doubts God. To believe him, not just when I accept Christ as Savior, but every moment, one moment at a time: this is the Christian life, and this is true spirituality.

The Complete Works of Francis A. Schaeffer: A Christian view of spirituality (ed. 1982)