We face a danger that is creeping in like a tide, rising with each passing moment, making the spot we are standing on in danger of becoming an island. It is a tide of temptation to put “self” first, to rate personal happiness before all else, to claim our “rights” as our basic platform and “search for fulfillment” as our purpose in life. It is hard not to become infected with some sort of breathing trouble, when surrounded by terribly polluted air. Likewise, I feel it is hard not to become infected with some sort of thinking problem, when surrounded by terribly polluted ideas. Just as extreme pollution of air can cause difficult breathing and even lung disease, so we can become twisted by a diseased perspective, a cancerous growth, causing our minds to be malfunctioning in relationship to true truth. We can, in that other picture, suddenly be floating on the tide of the “new thinkables,” so that our feet are no longer on the solid ground of our island after all.
— Edith Schaeffer, from Affliction, p. 217