A Quote by Carl Sagan

Science cuts two ways, of course; its products can be used for both good and evil. But there's no turning back from science. The early warnings about technological dangers also come from science.
I come back to the science that is in it to reduce our dependence on foreign oil and climate change. It's about science, science, science and science, innovation, as we rebuild America, create jobs, invest in our people and turn this economy around.
Mathematics has two faces: it is the rigorous science of Euclid, but it is also something else. Mathematics presented in the Euclidean way appears as a systematic, deductive science; but mathematics in the making appears as an experimental, inductive science. Both aspects are as old as the science of mathematics itself.
There are two kinds of science: The black science and the white science. The science of weapon production is the black one. Working in this category of science is a great betrayal to humanity!
Science merely amplifies the capabilities of human beings. Science gives us the ability to do ill and to do good more than we had, and to question science in this respect is like questioning whether people ought to have two hands or just one, because with two hands they could do more evil than they can with just one.
We are too prone to make technological instruments the scapegoats for the sins of those who wield them. The products of modern science are not in themselves good or bad; it is the way they are used that determines their value.
There are two avenues from the little passions and the drear calamities of earth; both lead to the heaven and away from hell-Art and Science. But art is more godlike than science; science discovers, art creates.
The whole point of science is that most of it is uncertain. That's why science is exciting--because we don't know. Science is all about things we don't understand. The public, of course, imagines science is just a set of facts. But it's not. Science is a process of exploring, which is always partial. We explore, and we find out things that we understand. We find out things we thought we understood were wrong. That's how it makes progress.
Another of the qualities of science is that it teaches the value of rational thought, as well as the importance of freedom of thought; the positive results that come from doubting that all the lessons are true... Learn from science that you must doubt the experts. As a matter of fact, I can also define science another way: Science is the belief in the ignorance of experts.
If, in the course of a thousand or two thousand years, science arrives at the necessity of renewing its points of view, that will not mean that science is a liar. Science cannot lie, for it's always striving, according to the momentary state of knowledge, to deduce what is true. When it makes a mistake, it does so in good faith. It's Christianity that's the liar. It's in perpetual conflict with itself.
Remember, science fiction's always been the kind of first level alert to think about things to come. It's easier for an audience to take warnings from sci-fi without feeling that we're preaching to them. Every science fiction movie I have ever seen, any one that's worth its weight in celluloid, warns us about things that ultimately come true.
A precondition for being a science fiction writer other than an interest in the future is that, an interest - at least an understanding of science, not necessarily a science degree but you must have a feeling for the science and its possibilities and its impossibilities, otherwise you're writing fantasy. Now, fantasy is also fine, but there is a distinction, although no one's ever been able to say just where the dividing lines come.
Part of science is the questioning of authority, absolute freedom of ideology. The Soviets did some very good science, but when science ran into ideology, it had trouble. Science flourishes best in a democracy.
Science is the key to our future, and if you don’t believe in science, then you’re holding everybody back. And it’s fine if you as an adult want to run around pretending or claiming that you don’t believe in evolution, but if we educate a generation of people who don’t believe in science, that’s a recipe for disaster. We talk about the Internet. That comes from science. Weather forecasting. That comes from science. The main idea in all of biology is evolution. To not teach it to our young people is wrong.
Science is the most durable and nondivisive way of thinking about the human circumstance. It transcends cultural, national, and political boundaries. You don't have American science versus Canadian science versus Japanese science.
You like science? You enjoy science? Always use it for good, never for evil. Can you promise me that?
I believe in rendering to science the things that belong to science. I have no problem with evolution or discussions of the age of the Earth, for I don't believe that we come anywhere near comprehending the mind of God or the workings of the universe. Science can explain a lot, but it cannot give us faith, and I think we need both.
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