The most exciting phrase to hear in science, the one that heralds new discoveries, is not 'Eureka!' but 'That's funny...'
Life is a journey, but don't worry, you'll find a parking spot at the end.
Any teacher that can be replaced by a computer should be replaced by a computer.
I believe in evidence. I believe in observation, measurement, and reasoning, confirmed by independent observers. I'll believe anything, no matter how wild and ridiculous, if there is evidence for it. The wilder and more ridiculous something is, however, the firmer and more solid the evidence will have to be.
Intelligence is an accident of evolution, and not necessarily an advantage.
Feminine intuition? Is that what you wanted the robot for? You men. Faced with a woman reaching a correct conclusion and unable to accept the fact that she is your equal or superior in intelligence, you invent something called feminine intuition.
The world of A.D. 2014 will have few routine jobs that cannot be done better by some machine than by any human being. Mankind will therefore have become largely a race of machine tenders.
In life, unlike chess, the game continues after checkmate.
If I am right, then (religious fundamentalists) will not go to Heaven, because there is no Heaven. If they are right, then they will not go to Heaven, because they are hypocrites.
Never let your sense of morals get in the way of doing what's right.
Isn't it sad that you can tell people that the ozone layer is being depleted, the forests are being cut down, the deserts are advancing steadily, that the greenhouse effect will raise the sea level 200 feet, that overpopulation is choking us, that pollution is killing us, that nuclear war may destroy us - and they yawn and settle back for a comfortable nap. But tell them that the Martians are landing, and they scream and run.
The law of conservation of energy tells us we can't get something for nothing, but we refuse to believe it.
While he lives, he must think; while he thinks, he must dream.
Science is uncertain. Theories are subject to revision; observations are open to a variety of interpretations, and scientists quarrel amongst themselves. This is disillusioning for those untrained in the scientific method, who thus turn to the rigid certainty of the Bible instead. There is something comfortable about a view that allows for no deviation and that spares you the painful necessity of having to think.
I am not a speed reader. I am a speed understander.
Was there anything more exciting in life than seeking answers?
Democracy cannot survive overpopulation. Human dignity cannot survive it. Convenience and decency cannot survive it. As you put more and more people into the world, the value of life not only declines, but it disappears. It doesn't matter if someone dies.
My feeling is, quite simply, that if there is a God, He has done such a bad job that he isn't worth discussing.
To succeed, planning alone is insufficient. One must improvise as well.
There are no happy endings in history, only crisis points that pass.
Uncertainty that comes from knowledge (knowing what you don't know) is different from uncertainty coming from ignorance.
And above all things, never think that you're not good enough yourself. A man should never think that. My belief is that in life people will take you at your own reckoning.
Any fool can tell a crisis when it arrives. The real service to the state is to detect it in embryo.
Once, when a religionist denounced me in unmeasured terms, I sent him a card saying, "I am sure you believe that I will go to hell when I die, and that once there I will suffer all the pains and tortures the sadistic ingenuity of your deity can devise and that this torture will continue forever. Isn't that enough for you? Do you have to call me bad names in addition?"
Science can amuse and fascinate us all, but it is engineering that changes the world.
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