A Quote by Aristotle

No science ever defends its first principles. — © Aristotle
No science ever defends its first principles.

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In every science certain things must be accepted as first principles if the subject matter is to be understood; and these first postulates rest upon faith.
Science is about principles. It's about concepts. It's not about memorizing the parts of a flower. It helps to know some of these things, but if that's all you do that's not science, science is about principles and concepts.
The basic principles of democracy should be observed whatever the country - principles such as civil liberties, a free market, a free press, the priority of the individual over mythical state interests, a state which serves the interests of ordinary people and defends their rights and interests. This is all easy to say but hard to make reality.
Ares always reemerges from the chaos. It will never go away. Athenian civilization defends itself from the forces of Ares with metis, or technology. Technology is built on science. Science is like the alchemists' uroburos, continually eating its own tail. The process of science doesn't work unless young scientists have the freedom to attack and tear down old dogmas, to engage in an ongoing Titanomachia. Science flourishes where art and free speech flourish.
I keep wondering who defends Quebec identity: who defends sovereignty, the right of the people to express themselves freely.
There is a conceptual depth as well as a purely visual depth. The first is discovered by science; the second is revealed in art. The first aids us in understanding the reasons of things; the second in seeing their forms. In science we try to trace phenomena back to their first causes, and to general laws and principles. In art we are absorbed in their immediate appearance, and we enjoy this appearance to the fullest extent in all its richness and variety. Here we are not concerned with the uniformity of laws but with the multiformity and diversity of intuitions.
Be thou incapable of change in that which is right, and men will rely upon thee. Establish unto thyself principles of action; and see that thou ever act according to them. First know that thy principles are just, and then be thou.
He who defends everything defends nothing.
Biology has tended to be an observational science and deriving things from first principles has not been possible in the past but I hate to predict the future on that.
Tektology was the first attempt in the history of science to arrive at a systematic formulation of the principles of organization operating in living and nonliving systems.
The task of the political philosopher can only be to influence public opinion, not to organize people for action. He will do so effectively only if he is not concerned with what is now politically possible but consistently defends the "general principles which are always the same." In this sense I doubt whether there can be such a thing as a conservative political philosophy. Conservatism may often be a useful practical maxim, but it does not give us any guiding principles which can influence long-range developments.
Every science has for its basis a system of principles as fixed and unalterable as those by which the universe is regulated and governed. Man cannot make principles; he can only discover them.
Those who are accustomed to judge by feeling do not understand the process of reasoning, because they want to comprehend at a glance and are not used to seeking for first principles. Those, on the other hand, who are accustomed to reason from first principles do not understand matters of feeling at all, because they look for first principles and are unable to comprehend at a glance.
All official and liberal science defends wage-slavery, whereas Marxism has declared relentless war on that slavery.
Arthur Clarke says that I am first in science and second in science fiction in accordance with an agreement we have made. I say he is first in science fiction and second in science.
As soon as I could ride a bike... I was always riding over to the Museum of Science and Industry to explore. It's where I first began to develop a fascination with machines and scientific principles.
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