I saw a funny quip the other day on this.
It was something about a college student arguing about the inherent goodness of man.
The other party retorted, “you only think that because you have not spent any time around a three-year-old.”
Of course, at this point you don’t even need that. Just turn on the TV.
There are plenty of hate-filled people screaming that they have never done anything wrong (as they tear the world apart).
A recovery of the old sense of sin is essential to Christianity. Christ takes it for granted that men are bad. Until we really feel this assumption of His to be true, though we are part of the world He came to save, we are not part of the audience to whom His words are addressed. We lack the first condition for understanding what He is talking about. And when men attempt to be Christians without this preliminary consciousness of sin, the result is almost bound to be a certain resentment against God as to one always inexplicably angry. Most of us have at times felt a secret sympathy with the dying farmer who replied to the Vicar’s dissertation on repentance by asking ‘What harm have I ever done Him?’
-C.S. Lewis, The Problem Of Pain (Amazon)