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Henri Poincare
Science is facts; just as houses are made of stones, so is science made of facts; but a pile of stones is not a house and a collection of facts is not necessarily science.
Isaac Asimov
The Law of conservation of energy tells us we can't get something for nothing, but we refuse to believe it.
The most exciting phrase to hear in science, the one that heralds new discoveries, is not 'Eureka!' (I found it!) but 'That's funny...'
Isaac Newton
To me there has never been a higher source of earthly honor or distinction than that connected with advances in science.
I keep the subject of my inquiry constantly before me, and wait till the first dawning opens gradually, by little and little, into a full and clear light.
J.B.S. Haldane
Now my own suspicion is that the Universe is not only queerer than we suppose, but queerer than we can suppose.
John von Neumann
Anyone who considers arithmetical methods of producing random digits is, of course, in a state of sin.
A scholar who cherishes the love of comfort is not fit to be deemed a scholar.
Lyall Watson
If the brain were so simple we could understand it, we would be so simple we couldn't.
Niels Bohr
Anyone who says that they can contemplate quantum mechanics without becoming dizzy has not understood the concept in the least.
Oliver Wendell Holmes
Science is a first-rate piece of furniture for a man's upper chamber, if he has common sense on the ground floor.
Paul Dirac
In science one tries to tell people, in such a way as to be understood by everyone, something that no one ever knew before. But in poetry, it's the exact opposite.
Astronomy compels the soul to look upwards and leads us from this world to another.
Ralph Waldo Emerson
Sometimes a scream is better than a thesis.
Rene Descartes
Each problem that I solved became a rule which served afterwards to solve other problems.
Richard Dawkins
Paley's argument is made with passionate sincerity and is informed by the best biological scholarship of his day, but it is wrong, gloriously and utterly wrong.
Natural selection, the unconscious, automatic, blind yet essentially non-random process that Darwin discovered, has no purpose in mind. If it can be said to play the role of watchmaker in nature, it is the blind watchmaker.
Richard P. Feynman
To those who do not know mathematics it is difficult to get across a real feeling as to the beauty, the deepest beauty, of nature. If you want to learn about nature, to appreciate nature, it is necessary to understand the language that she speaks in.
All theoretical chemistry is really physics; and all theoretical chemists know it.
Robert J. Oppenheimer
Now I am become death, the destroyer of worlds.