Fear and Evasion of Truth

"A Christian with faith has nothing to fear from facts; a Christian historian who draws the line limiting the field of enquiry at any point whatsoever, is admitting the limits of his faith. And of course he is also destroying the nature of his religion, which is a progressive revelation of truth. So the Christian, according to my understanding, should not be inhibited in the smallest degree from following the line of truth; indeed, he is positively bound to follow it." (Paul Johnson, A History of Christianity)