Give me some quotes.

"Previously he had never felt obliged to wrestle too seriously with this question. In his life he had taken certain things for granted, never challenging his belief in ultimate success, and bothering little about means and roads. But here he was confronted with a thing of moment. It had suddenly appeared to him that perhaps in a battle he might run. He was forced to admit that as far as war was concerned he knew nothing of himself"  (Chapter One)

"He felt that in this crisis his laws of life were useless. Whatever he had learned of himself was here of no avail. He was an unknown quantity. He saw that he would again be obliged to experiment as he had in early youth. He must accumulate information of himself, and meanwhile he resolved to remain close upon his guard lest those qualities of which he knew nothing should everlastingly disgrace him. "Good Lord!" he repeated in dismay." (Chapter One)

"For a time the youth was obliged to reflect in a puzzled and uncertain way. His mind was undergoing a subtle change. It took moments for it to cast off its battleful ways and resume its accustomed course of thought. Gradually his brain emerged from the clogged clouds, and at last he was enabled to more closely comprehend himself and circumstance." (Chapter 24)

Hey! Thanks jill it was a good answer :)