Table of Contents

BOOK I. RIGHT AND WRONG AS A CLUE TO THE MEANING OF THE UNIVERSE 
The Law of Human Nature 
Some Objections 
The Reality of the Law 
What Lies Behind the Law 
We Have Cause to Be Uneasy 

BOOK II. WHAT CHRISTIANS BELIEVE 
The Rival Conceptions of God 
The Invasion 
The Shocking Alternative 
The Perfect Penitent 
The Practical Conclusions 

BOOK III. CHRISTIAN BEHAVIOR 
The Three Parts of Morality 
The "Cardinal Virtues" 
Social Morality 
Morality and Psychoanalysis 
Sexual Morality 
Christian Marriage 
Forgiveness 
The Great Sin 
Charity 
Hope 
Faith 
Faith 

BOOK IV. BEYOND PERSONALITY: OR FIRST STEPS IN THE DOCTRINE OF THE TRINITY 
Making and Begetting 
The Three-Personal God 
Time and Beyond Time 
Good Infection 
The Obstinate Toy Soldiers 
Two Notes 
Let's Pretend 
Is Christianity Hard or Easy? 
Counting the Cost 
Nice People or New Men 
The New Men 


Mere Christianity begins as a recitation of what is known as the moral argument for the existence of God. According to Lewis, the moral law consists of the fundamental rules by which the universe operates and to which all residing within are bound. And even though considerable intellectual resources have been expended to deny its existence, not even those making it their life�s purpose to undermine these eternal principles can escape from them try as they might. Lewis observes, �Whenever you find a man who says he does not believe in a real Right and Wrong, you will find the same man going back on this a moment later.