“Man cannot survive except through his mind. He comes on earth unarmed. His brain is his only weapon. Animals obtain food by force. man had no claws, no fangs, no horns, no great strength of muscle. He must plant his food or hunt it. To plant, he needs a process of thought. To hunt, he needs weapons,and to make weapons - a process of thought. From this simplest necessity to the highest religious abstraction, from the wheel to the skyscraper, everything we are and we have comes from a single attribute of man -the function of his reasoning mind.”

“Man's mind is his basic tool of survival. Life is given to him, survival is not. His body is given to him, its sustenance is not. His mind is given to him, its content is not. To remain alive, he must act, and before he can act he must know the nature and purpose of his action. He cannot obtain his food without a knowledge of food and of the way to obtain it. He cannot dig a ditch-or build a cyclotron-without a knowledge of his aim and of the means to achieve it. To remain alive, he must think”

“A real man's weapon is his mind.”

“Eventually the man comes to see that he has a mind, and that his mind is like a fist, wrapped tightly around a single thought. He cannot open the fist to look at the thought, for fear that it will fly away, but he knows that it is very important and that he must hang on to it, no matter what the cost.”

“Nonetheless, he is a boy. Despite his talents, a boy. And a boy is more idealistic than a man, and high ideals in the hands of children can be as dangerous as weapons. He thought he was in the right, and because he thought he was in the right, he thought there would be an exception. That's that.”

“His eyes bore into mine. He watches every nuance, every detail of every expression, as if his existence depends on it. He fucks with the single-minded devotion of a dying man hunting God.”