“The man who discovers new knowledge is the permanent benefactor of humanity.”

“Learn to value yourself, which means: fight for your happiness.”

“The truth is not for all men but only for those who seek it.”

“If that which we have found is the corruption of solitude, then what can men wish for save corruption? If this is the great evil of being alone, than what is good and what is evil?”

“Man is an end in himself.”

“Whatever their future, at the dawn of their lives, men seek a noble vision of man’s nature and of life’s potential.”

“Definitions are the guardians of rationality, the first line of defense against the chaos of mental disintegration.”

“The spread of evil is the symptom of a vacuum. Whenever evil wins, it is only by default: by the moral failure of those who evade the fact that there can be no compromise on basic principles.”

“Aristotle may be regarded as the cultural barometer of Western history. Whenever his influence dominated the scene, it paved the way for one of history’s brilliant eras; whenever it fell, so did mankind.”

“And now I see the face of god, and I raise this god over the earth, this god whom men have sought since men came into being, this god who will grant them joy and peace and pride. This god, this one word: ‘I.”

“In any compromise between food and poison, it is only death that can win. In any compromise between good and evil, it is only evil that can profit.”

“A culture is made — or destroyed — by its articulate voices.”

“Contrary to the ecologists, nature does not stand still and does not maintain the kind of equilibrium that guarantees the survival of any particular species – least of all the survival of her greatest and most fragile product: man.”

“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. “But to think is an act of choice. The key to what you so recklessly call ‘human nature,’ the open secret you live with, yet dread to name, is the fact that man is a being of volitional consciousness. Reason does not work automatically; thinking is not a mechanical process; the connections of logic are not made by instinct. The function of your stomach, lungs, or heart is automatic; the function of your mind is not. In any hour and issue of your life, you are free to think or to evade that effort. But you are not free to escape from your nature, from the fact that reason is your means of survival – so that for you, who are a human being, the question ‘to be or not to be’ is the question ‘to think or not to think.’ . . . “Man has no automatic code of survival. His particular distinction from all other living species is the necessity to act in the face of alternatives by means of volitional choice. . . Man must obtain his knowledge and choose his actions by a process of thinking, which nature will not force him to perform. Man has the power to act as his own destroyer – and that is the way he has acted through most of his history (pages 1012-1013).”

“An inventor is a man who asks ‘Why?’ of the universe and lets nothing stand between the answer and his mind.”