" If the logic of God’s truth pulls in one direction and the logic of unbelief pulls in the opposite direction, unbelief will never face the full logic of either. Both destinations would be unthinkable, though for entirely different reasons, as both would mean the end of unbelief. The logic of God’s truth would lead to God, and the logic of unbelief would lead to disaster. Unbelief therefore lives in tension between the two worlds. As Francis Schaeffer pointed out (and his whole apologetics turned on this point), “The more logical a non-Christian is to his own presuppositions, the further he is from the real world; and the nearer he is to the real world, the more illogical he is to his presuppositions.”41 "

― Os Guinness , Fool's Talk: Recovering the Art of Christian Persuasion