All evil is good become cancerous.
There is not a discovery in science, however revolutionary, however sparkling with insight, that does not arise out of what went before.
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 made up my mind long ago to follow one cardinal rule in all my writing — to be clear.
The lucky few who can be involved in creative work of any sort will be the true elite of mankind, for they alone will do more than serve a machine.
The final end of Eternity, and the beginning of Infinity
I am an atheist, out and out. It took me a long time to say it.
Old men tend to forget what thought was like in their youth; they forget the quickness of the mental jump, the daring of the youthful intuition, the agility of the fresh insight. They become accustomed to the more plodding varieties of reason, and because this is more than made up by the accumulation of experience, old men think themselves wiser than the young.
Scientists derive satisfaction from figuring out the puzzle. It's about the quest, not the grail.
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.
It seems to me that God is a convenient invention of the human mind
University President: Why is it that you physicists always require so much expensive equipment? Now the Department of Mathematics requires nothing but money for paper, pencils, and erasers . . . and the Department of Philosophy is better still. It doesn't even ask for erasers.
I can't bear to hear a human being spoken of with contempt just because of his group identification...It's these respectable people here who create those hooligans out there.
Past glories are poor feeding.
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.
How then to enforce peace? Not by reason, certainly, nor by education. If a man could not look at the fact of peace and the fact of war and choose the former in preference to the latter, what additional argument could persuade him? What could be more eloquent as a condemnation of war than war itself? What tremendous feat of dialectic could carry with it a tenth the power of a single gutted ship with its ghastly cargo?
One would suppose that the battle for religious liberty was won in the United States two hundred years ago. However, in the time since, and right now, powerful voices are always raised in favor of bigotry and thought control. It is useful, then, to have a compendium of the thoughts of great men and women of all faiths (and of none) on the subject, to convince us that we men and woman of freedom are not and never have been alone.
All the hundreds of millions of people who, in their time, believed the Earth was flat never succeeded in unrounding it by an inch.
Mathematicians deal with large numbers sometimes, but never in their income.
I have never written a book that didn't teach me far more than it taught my reader.
The essential building block is...the true love that is impossible to define for those who have never experienced it and unnecessary to define for those who have.
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.
Radiation, unlike smoking, drinking, and overeating, gives no pleasure, so the possible victims object.
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