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Enemy-occupied territory-that is what this world is.  Christianity is the story of how the rightful king has landed, you might say landed in disguise, and is calling us all to take part in a great campaign of sabotage.  When you go to church you are really listening-in to the secret wireless from our friends:  that is why the enemy is so anxious to prevent us from going.  He does it by playing on our conceit and laziness and intellectual snobbery."

Mere Christianity

C.S. Lewis