Mere Christianity

Chapter 1
The Law of Human Nature
In this chapter, Lewis distinguished the Law of Human Nature from the scientific meaning of the Law of Nature. In the human world, a person sets the standard rule of right and wrong for both himself/herself and other people. He/she can so easily spot others’ fault when they are violating the standards. But at the same time, when he/she can’t behave properly in the same way, he/she can hardly find that he/she is actually breaking his/her own rules. As Lewis said, “we have failed to practice ourselves the kind of behavior we expect from other people.” Because this happened, people usually like to quarrel with each other and try to correct another one. And the quarrelling became worse especially when two persons have different sets of rules.
It is easier for people to disobey the Law of Human Nature than any other laws; since it is made by themselves and is not shared by other things.
However, there is something in common. For example, people have “always agreed that you ought not to put yourself first.” Most people thought that they can not disobey those common behaviors since they are too common to violate. But in fact, people are breaking those common rules every day.
Chapter 2
Some Objections
Some people thought that “Moral Law= Human Instinct”. However, Lewis pointed out that was wrong. Moral Law always led people to a right way. On the hand, human instinct usually instructs people to act the way which can benefit himself/herself the most. For example, when someone asked for help, moral law made us want to help the person. At the same time, human instinct tells us to keep away from the danger.
Human instinct has its negative side, considered selfishness. A man’s instinct can only help the man do his own staff the best way but may not worry about anyone else. But the Moral Law would consider the common good will objectively
Chapter 3
The Reality of the Law
The Law itself can not be defined as wrong or right. It depends on the one who made the law. If the inventor thought that’s right, then, that is right. Lewis compared the Law of Human Nature to the Natural Law. If you see a person is doing something wrong, it will more likely to say that a stone has a wrong shape. When we are talking about human, we may not notice that how ridiculous we are when we are using our own standards to judge other ones. But if we replace the person with the stone, we may ask, “Should the stone have a certain shape, who cares?” So the reality of law must have a real thing to depend on.

Chapter 4
What Lies Behind the Law
In this chapter, Lewis talked about the Law of Human Nature from two views: world view and religious view.
The world view is connected to the scientific view of the universe. In science, everything originally comes from observation. Because our scientists have not yet be able to observe the creation of Universe, so some of the scientist denied the idea of God.
But at the same time, from a religious view; if God dose exist, god will act on our inner spiritual feeling instead of materialistic satisfaction.