Nothing is more practical, nothing is more basic, than the conviction that there is truth that can be known. Without this conviction, life becomes more and more intolerable and mor and more filled with alientation. The more consistently people live with the loss of truth, the more their lives will fall apart, for the center does not hold.
Jerram Barrs, in: Bruce A. Little (Ed.). Francis Schaeffer – A Mind and Heart for God. P & R Publishing: Phillipsburg 2010.