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It has now become clear that the exploration of the Universe, as conducted by physicists, astronomers and cosmologists, is one of the greatest intellectual adventures of the mid-twentieth century.
--
Preface, p.vii

 

Dennis Sciama

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While in the ?rst quarter of this century physicists and cosmologists were forced to revise the basic notions that govern the natural sciences, in the last quarter of this century biologists will force a revision of the basic notions that govern science itself. After that “?rst revolution” it was clear that the classical concept of an “ultimate science”, that is an objective description of the world in which there are no subjects (a “subjectless universe”), contains contradictions.

 

Heinz von Foerster

 

The materialist critics argue that insuperable difficulties are encountered by the hypothesis that immaterial mental events can act in any way on material structures such as neurons. Such a presumed action is alleged to be incompatible with the conservation laws of physics, in particular of the first law of thermodynamics. This objection would certainly be sustained by nineteenth century physicists, and by neuroscientists and philosophers who are still ideologically in the physics of the nineteenth century, not recognizing the revolution wrought by quantum physicists in the twentieth century.

 

John Carew Eccles

 

Today, like the elusive planet Vulcan in the nineteenth century, dark matter is accepted by the majority of astronomers and physicists as actually existing. Dark matter, although it has never been seen, is part of the generally accepted standard model of physics and cosmology, which also includes the big bang beginning of the universe.

 

John (physicist) Moffat

 

Friedrich Hayek, who died on March 23, 1992 at age 92, was arguably the greatest social scientist of the twentieth century. By the time of his death, his fundamental way of thought had supplanted the system of John Maynard Keynes — his chief intellectual rival of the century — in the battle since the 1930s for the minds of economists and the policies of governments."

 

Friedrich Hayek

 

The method of the twentieth century is to use not single but multiple models for experimental exploration – the technique of the suspended judgement.

 

Marshall McLuhan