A robot may not injure a human being, or, through inaction, allow a human being to come to harm.
Science is complex and chilling. The mathematical language of science is understood by very few. The vistas it presents are scary-an enormous universe ruled by chance and impersonal rules, empty and uncaring, ungraspable and vertiginous. How comfortable to turn instead to a small world, only a few thousand years old, and under God's personal; and immediate care; a world in which you are His peculiar concern.
The human brain, then, is the most complicated organization of matter that we know.
There is no more desire to live past one's time than to die before it.
Words are a pretty fuzzy substitute for mathematical equations.
Human beings thought with their hands. It was their hands that were the answer of curiosity, that felt and pinched and turned and lifted and hefted. There were animals that had brains of respectable size, but they had no hands and that made all the difference.
The Master created humans first as the lowest type, most easily formed. Gradually, he replaced them by robots, the next higher step, and finally he created me, to take the place of the last humans.
I don’t like anything that’s got to be. I want to know why.
Why ... did so many people spend their lives not trying to find answers to questions -- not even thinking of questions to begin with? Was there anything more exciting in life than seeking answers?
I prefer rationalism to atheism. The question of God and other objects-of-faith are outside reason and play no part in rationalism, thus you don't have to waste your time in either attacking or defending.
Mathematicians deal with large numbers sometimes, but never in their income.
There are so many benefits to be derived from space exploration and exploitation; why not take what seems to me the only chance of escaping what is otherwise the sure destruction of all that humanity has struggled to achieve for 50,000 years?
Having no unusual coincidence is far more unusual than any coincidence could possibly be.
All the hundreds of millions of people who, in their time, believed the Earth was flat never succeeded in unrounding it by an inch.
Speech, originally, was the device whereby Man learned, imperfectly, to transmit the thoughts and emotions of his mind. By setting up arbitrary sounds and combinations of sounds to represent certain mental nuances, he developed a method of communication--but one which in its clumsiness and thick-thumbed inadequacy degenerated all the delicacy of the mind into gross and guttural signaling.
Despite all that education and experience can do, I retain a certain level of unsophistication that I cannot eradicate and that my friends find amusing. In fact, I think I sometimes detect conspiratorial plottings among my friends to protect me against my own lack of sophistication. I don't mind. I suspect that I am never quite as unsophisticated as they think I am, but I don't mind.
Suppose that we are wise enough to learn and know - and yet not wise enough to control our learning and knowledge, so that we use it to destroy ourselves? Even if that is so, knowledge remains better than ignorance.
Any planet is 'Earth' to those that live on it.
Past glories are poor feeding.
If there is a category of human being for whom his work ought to speak for itself, it is the writer.
Married life had taught Toran the futility of arguing with a female in a dark-brown mood.
They absorb carbon monoxide and carbon dioxide and give out oxygen. What could be more desirable? And they look good in the bargain. Stop chopping down the rain forests and plant more saplings, and we're on our way.
To surrender to ignorance and call it God has always been premature, and it remains premature today.
When, however, the lay public rallies round an idea that is denounced by distinguished but elderly scientists and supports that idea with great fervor and emotion - the distinguished but elderly scientists are then, after all, probably right.
I have never written a book that didn't teach me far more than it taught my reader.
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