He had learned some of the things that every man must find out for himself, and he had found out about them as one has to find out--through error and through trial, through fantasy and illusion, through falsehood and his own damn foolishness, through being mistaken and wrong and an idiot and egotistical and aspiring and hopeful and believing and confused. Each thing he learned was so simple and obvious, once he grasped it, that he wondered why he had not always known it. And what had he learned? A philosopher would not think it much, perhaps, and yet in a simple human way it was a good deal. Just by living, my making the thousand little daily choices that his whole complex of heredity, environment, and conscious thought, and deep emotion had driven him to make, and by taking the consequences, he had learned that he could not eat his cake and have it, too. He had learned that in spite of his strange body, so much off scale that it had often made him think himself a creature set apart, he was still the son and brother of all men living. He had learned that he could not devour the earth, that he must know and accept his limitations. He realized that much of his torment of the years past had been self-inflicted, and an inevitable part of growing up. And, most important of all for one who had taken so long to grow up, he thought he had learned not to be the slave of his emotions.